Science Crossword
            
            
            
            
            
            
            
            
            
            
            
            
 
 
Down: 1) A waste product3) All the living and nonliving things that surround Across: 2) A community of organisms and the environment in which they live4) hi5) the death of all organisms of a certain kind of living thing6) that harms living things and damages an environment
 

 

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