the answer is it has a long half life 
 
        
             
        
        
        
Answer:
i don't get it , more info ?
Explanation:
 
        
                    
             
        
        
        
Answer:
A. three pounds
Explanation:
it definitely doesn't weigh ounces :)
 
        
                    
             
        
        
        
The fact that species are becoming immune through natural selection being passed down generations