Easy2Siksha.com
  -2024
 5 
 
(        -I)
:    :60
:          ,           
          
-
1. ()        
()    ?
2.             
-
3. ()          ?
(b)         
4. ()        
()                ?
Easy2Siksha.com
-
5.       
6.       ?
-
7. ()            ?
()       ?
8.     :
()     
()    .
Easy2Siksha.com
  -2024
 5 
 
(        -I)
:    :60
:          ,           
          
-
1. ()        
()    ?
:        
         ,         
   -       ,   ,  
                 
 ,          ?        
      ,      ,      
 
,   ,           ,   
  ,               
 ,          
1.        
            ,    ,
  ,    ,     ,   
      
Easy2Siksha.com
  ,          -  ,   
 
 ,               -  
                
    
      ,      , 
   
        ,   
     
        ,    , 
    
2.        
               
     ,  , , ,      
    ,              
    
    ,           
   ,             
    
 :              ,     
            ,  
      ,      ,    
          
3.      
          ,     
    ,            :
        
        ,       
  
    ,         
   
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               , 
     
4.       
  ,            
         :
,          
            

              
  
 ,  
   -  ,         
    
5.         
 ,                
  ,            ,    
  ,         
      ,            ,
          ,    , 
   
   :    
         ,           
           ,        
                
     
                 
              ,     
     ,         , 
         ,       -
  
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         
1.     ,      ,        ,
           
2.                 ,
         
3.             -  ,   
        
4.               
     
      ,      :
           
    -     ,   
  
,     ,          ,
   
,     ,           
              
   :    
                 , 
          ,       ,
            :    ,   ,
            

 ,         ,   ,   ,
              
        ,        
              
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               ,   
          ,      
                
,           ,        
      
2.             
:󷊆󷊇:     
1.  ?
 ,               
       -     ,  ,
,         
2.    
    :         ,
, ,         -   
       ,          
    :             
            , , 
                 
  ,            
  :        ,  -
   
   :       , ,
            
     
   (   ): ,       
      ,   
       
3.    
   :,          
   0.8  1         , 60
       50-60     
 :
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o ,            
  
o           
:
o  : , , , , 
o  : , , , , ,  
󷈷󷈸󷈹󷈺󷈻󷈼 :     
1.  ?
,  ,                , 
  ,  ,   
       
2.    
   :    (9   )      
         ,       
  
  :           ,  
                  ,
    
  : , ,        , 
    ,     
  :      ()    
,     
   :      ,    
    
    :  60%      ,   
3  , ,       
3.    
   :      20-30%    
   2000   ,    60-70  
   :
o   (  ):  , ,        
           
o   (  ): ,         
      
o   ( ):   ,       
      
 :            
            
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󽀼󽀽󽁀󽁁󽀾󽁂󽀿󽁃    :   

      -      

      -           
               
               
   ,   ,      

󷇮󷇭     
  :          , 
        ,       

  :   ,   ,   (  ) 
  (   )    
  : ,   ,  , ,   
    
󼩺󼩻   
        

,          ,    
     
           , 
    
       ,      ,  ,
               
 
󹶓󹶔󹶕󹶖󹶗󹶘
     ,              

  , ,   - 
  
   , , ,       
    
  :    50-60    60-70   ( 
  )    ,      
    
  :       ,      
 ,            
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,       ,   :          ,
       
         , 
          
-
3. ()          ?
(b)         
:    :       
             ,    
    ,      -        
   ,         ,    
   ,           
     ,            
 , ,       ,  ""   :
                 
, ,        ,      
,            
  A:   C       ?
1.   :   
 ,       ,        
     ,     ,      
                
      ,        
  ""            
    :  ?
        ,      ,  
     :
Easy2Siksha.com
1. :  
              
        :
o       ,     , 
      
o              
      ,          
     
o       -        
      -  
o       ,      
,     
o  -          ,  
,        
2.    
           ,  
       ( )      
    
      
     ,            
:
:, , , , , 
 : , , , , 
2.  : 

          
    ,    
           ,   
                 
,        ,       

  :  ?
         ,       
                 
    :
Easy2Siksha.com
1.    
               
      -        
2.  
,                
    
3.        
    ,          
         
4.       
                
          
5.       
-,      ,      -  
      -           
    
        :
  (   ):  ,  ,      
  
-  ( ):, , ,  ,     
    
  -          
 ,              
  :       
        
   ,    
     
1. :   
                
                 
      ,       
    
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            :
  :, , , 
    :, , ,   
     :     
   :, .
   :  .
:              
    
2. :   
    ,            
  ,             ,  
    ,  ,          

    
            :
  :      
 :,    
  :         
: 
    
         -         
       ;        
 ;   
    ;              
     
     ,      (   ,   )  
  ,         (, )     ,  
    (    )     ,    
  (,  )
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   , ,  ,        
 ,               
         ,      

                   
              " "  
  ,          ,  
         ,    ,
                 
  
       ,        
 ,        ,  ,     
   
4. ()        
()                ?
:󷊆󷊇()      
         :      
(, ,  ),        ,    
      ,       
    ,      :
1.      
       - ,     - 
 
           
:           ,     
2.   
-,     ,    
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:  
 (      )  
    
3. -    (    )
                
  
       ( )       
4.       
                
:           
5.     
            
:         
6.     
       
:              
 
7.   
           (, ) 
  
:             
8.  
          
:   ,   ,   
󹵍󹵉󹵎󹵏󹵐:      
              (  
    ):
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           ,       
󷈷󷈸󷈹󷈺󷈻󷈼()         
        ,          ,
               
                 ,
    
   :
1.     (  )
     .
       ()   ,   
    
: ,  ,   
2. 
  ,            
         
: , , ,  
3.  ( )
        
: , ,  
4.     
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     
:   , ,  ,  
5.     
    
: ,  ,    
6.     (SO₂)   
      
:   (, ),   ,  
7.       (  ,    )
  (  )    
 ,     
: , ,  
8.  (  ,  )
     .
: , ,   
9.  (, ,  )
       
: , , ,   
󽀼󽀽󽁀󽁁󽀾󽁂󽀿󽁃  
           
   (   ,      
 )
              
       ,      
  
󼩺󼩻   
             ,  (),  
 (, ),   (   )      
,     :    (),   (  ),  
(, ,    )  ,       
           
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󹶓󹶔󹶕󹶖󹶗󹶘
                  
 ,                
 
 :    , ,     
  - , ,      
   :, , , , , , ,
         ,   
      
 ,       ,       
              ,  
     
-
5.       
:    :     
                 ,  
              , ,  
     ?              
    ?  ,  ,    ,   
,               , 
      
             ,  
  ,            ,  
  , -           
    
1.      
                    
  ,            
                   
,    ,             
Easy2Siksha.com
        ,      ,  
 
  ,             ,     
   ,        ,    
-             
 ,                
2.        
          ,      ,  
         
               
        ,          
     ,          , 
            

              
     ,         
                
     ,           
   
3.        
 -        ,       
    -            
 
       ,        ,
        ,      ,
  ,          - 
       
        ,     ,  
   ,          
           
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4.    
               ,  
    -           
 ,           , 
 ,            ,
             
     
               ,
      ,         
-              
 
5.         
     ,          
   ,        
           
         ,   -  
      
               ,
  -     
             ,    
          ,         
     
6.      
  ,          - , , 
        
  ,           
        ,   
          -    
       , ,    
        
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7.       
      -     ,     ,    
 
  ,              
    ,           
         ,   -   
     
                
        ,        
    
8.             
    -         
,   ,   ,         
       , , -  
,     
  ,           ,   
    ,       ,   
,        ,    
  
9.     - 
               
 ,            ,   
    
                  
                
      :            
     
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10.      
             
 ;        ;    
     
                  ,
       ,       ,
            ,   
     
11.           
                  
        ,        
  ;            
           ,     
       ,        
            

12.     
 ,             ,
            ,  
       ,      
  ,               
  ,                

          
             ,       
  (- ) -,  ,     ( ) 
           (  )    
 ,       ( )   ,  
 ,      ,        (
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 )   ,        (-  -
 )
       - ,    -    

                   
 , ,          , 
         , , -  
       -   ,      
     
              ,   
           ,     
6.       ?
:󷊆󷊇   
1.  
                 
  , ,   ,   
2.     
    
 ,       
   -      
3.     
   :  ,     
 
         :        (,
    )    
  :     ,       ,  
    
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4.     
   3       10      
     
     
󷈷󷈸󷈹󷈺󷈻󷈼   
1.  
       , , ,
      
2.     
   - ,      
   -      ,        
      -         ,   
       
3.     
  :          
 : , , ,     
:     ,       
 :      
4.     
     ,   ,   
,    
  ,       
󽀼󽀽󽁀󽁁󽀾󽁂󽀿󽁃       
              :

 
 

, , ,  
 
, ,    
 
  .
: , , , ,

Easy2Siksha.com

 
 
 
 (, )  
.
   ; , ,  
    
 
 -  
  
 -      

    
 
   ,     

  
    , -  
 
, ,  
  
 ,    , 

󼩺󼩻   
    .
            ,      ,
       ,   
       ,    ,     
            
            ,     
          ,         
   ,       -  
󷇮󷇭   
1.    :          ( , ) 
    (, ,  )   
2.   :   (, )      (, 
)     
3.   :      ()    
(, , )      
󹶓󹶔󹶕󹶖󹶗󹶘  :        
       
    :
  :  , ,     - 
  :  , ,  ,    - 
      ,          
     
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󷈷󷈸󷈹󷈺󷈻󷈼          ?
       ,       , 
      ,         

        ,      , 
     ,      
    ,       
󼩺󼩻   
    :
 ''        ,   ,     
 
     ,      ,   ,  
    
 A     ,     B    ,   
       
󹶓󹶔󹶕󹶖󹶗󹶘
         
  ,       
 ,   
         ,   , 
     
     -, ,        
        
,         ,      ,  :
    ,      
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-
7. ()            ?
()       ?
:      :      
             ,  
       ,      ,   , 
    ,  ,        ,  ,
                
 ,         : ,      
 ,  ,        
       -          -,
         
()           
              
               
,            ,      
               
   ,            ? 
       
1.    
               
             :
      :         
    ,    ,      
 -  :  ,           
        
   :         
      ,        
     :      ,        
,     
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2.    
             ,   - 
       
      :    -   ,  
       ,         
        
  -  :     ,  ,   
          ,  
          
:     ,        
           ,  
  -     
          , ,     
      ,         
 
3.       
                
      :-  ,    
           
    :            
     ,          
 
   :    ,  ,     
,            
,                  ,
        
4.       
  ,             
,           
Easy2Siksha.com
  -  :-  ,    -  
            
   :     ,       , 
        
 :              
     
   
        ,   
  ,      
5.     
            
  :              
   ,            
    :-,   -      
  ,            ,
          
                 
     
6.    
 ,      , ,       
     
:    -       
  :          
     
 : ,        
     
     :     ,      
  
Easy2Siksha.com
    
 ,   , , , ,     
                
      ,       ,   
     
()      
              ,    
 ,               
  ,    -    , -     
 
                
1. -    (0-12 )
           ,      
 
 :    ,      
 : 6-8    ,        
  
  :4-6  ,      -  - 
:           ,  
   
,  ,        ,      
    
2. -  (  ) (12-18 )
    ,       : ""  ""
 :         , ""    
 " "
  :  -       
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  :     , 18     20-50  
 
           :         
3. -  (18-24 )
 ,       : " ", " "
     :   ,       
   :   , -     , "
"    "   "
    :      , -   50-100 
                 
  
4.     (24-30 )
       :          
   : ,         

  :       ,  ?   ,  
  :,           
  ,          ;  ,
          
5.     (3-5 )
,     ,    : ,    ,     
  
  :   ,        
    :   ,       
    :    ,  ,      
 
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            ,     
   
6.   (5+ )
            
  :    
     :,         
   : ,      
   :      ,    
    
  ,       ,        
  
          
         ,        
 :
1.   :   
2.  :      
3.     :   ,          

4.  : ,           
 
5.  :          
       :    ( )    , 
   (),  ()   ()    
       
              
     ,         
   ,             
Easy2Siksha.com
  ,       ,     
  ,      
      ,      ,   
  
 ,               ,    
   

                 
             -  ,
  , ,  ,          
  ,      :  ,  , -
,         
      ,        
       ,          
              ,  
 , ,     
8.     :
()     
()    .
:󷊆󷊇     ?
     ,           
     ,         
             ,     ;   
 ,   
        -,      
           
󷈷󷈸󷈹󷈺󷈻󷈼       
1. 
Easy2Siksha.com
      
   ,    , -       
  ,   ,       
  ,       

:                
      
2.  
         -   
   -         
             

:                  
 
3.  -   
     
                 
             

:        ,   -   
    ,           
4.   
 , ,             
        ,      
 
          

:        -      
5.      
        
      ,        ,   
       
          
6.    
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     -   
                 
             

:    -           
7.       
   -      
      ,      ,    
       
8.  
     
       -   -   
         
9.     
    ,      
            

   ,     
10.  
-    ,    ,     
  
    ,           
            
󼩺󼩻   
                
(),      ( ),         (
)       ,   ()   , - 
      ,          
           
󷇮󷇭       
1.   -  :            
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2.   :             
  
3.    :     ,   
󹶓󹶔󹶕󹶖󹶗󹶘
             : , ,
  ,    ,    , ,    
, ,   ,  -   
        ,      ,
   ,    ,        
,        -        ,   :
         ,   -    
              
"                 
     ,     "