Answer:
cleaning
Explanation:
If people would clean up after themselves, the world's rivers and lakes would be clean. Water pollutants can be somewhat easy to remove by taking the trash out of them.
 
        
             
        
        
        
This question had choices. These are the missing choices.
A)	Scientists made careful observations of behavioral patterns.	
B)	The DNA mutation rates for both species was calculated and compared.	
C)	Scientists made a detailed analysis of the fossilized bones of each species.	
D)	The enzyme activity of each species was studied to determine similarities in metabolism.	
My answer: 
C)	Scientists made a detailed analysis of the fossilized bones of each species.	
This determination is the only feasible thing to do since dinosaurs are long dead and choices A, B, and D requires the subjects to be alive.
        
                    
             
        
        
        
Answer:
I would probably want to give my child one or two specific traits like intelligence or no inheritable diseases, because I would want my child to have a excellent chance of success in life.
Explanation: