Page 198 - science 4_Neat

πp °üØn dG áo ©LGôeo

         
      

      
    
 

   

    
 
       
1۹۷
Ql ƒs °üeo ¢lüîs ∏eo
     
    

   
     
 
  
  
»‫¶م ت©∏«م‬u fCG / äÉjƒ£‫م‬dG
         
      
          
 
  
 