2 answers:
            
              
              
                
                
Answer:
C
there awasw a mass extinction of dinosaur species at the end of the Mesozoic.
Explanation:
C
Have A Great One!
 
                                
             
                    
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Answer:
D.) When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.
Explanation:
 
        
                    
             
        
        
        
Answer:
the world will end on few hours............
 
        
                    
             
        
        
        
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An ecosystem is the biotic and abiotic factors which are responsible for the survival of an animal
 
        
                    
             
        
        
        
Reduces carbon monoxide emissions from gasoline and improves fuel octane