Answer
no i don't know 
Explanation:
i am so dum  sorry if I can't help you
 
        
             
        
        
        
Explanation:
soil organisms which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms play an important role in maintaining fertility structure drainage and aeration of soil
 
        
             
        
        
        
Answer: The drug abuse is influenced by the environment and exerts influence on the gene expressions. 
Explanation:
The genetic make up of the person is decides, which genes will be expressed and develop a trait in an individual. But this genetic expression can be influenced by the environmental factors like food, exposure to sunlight, and others. This study which relate environment with the genetic make up is called epigenetics. No person is drug addict by birth but the consumption of drug can influence the genetic make up and traits in a abuser. So here, the environment is influencing the genetic basis of a abuser. 
 
        
             
        
        
        
The water goes down to the roots
        
             
        
        
        
Explanation:
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