You<span> can increase </span><span>your flexibility</span>
        
             
        
        
        
Answer:
it is also called the Musculoskeletal system	
Explanation:
 
        
                    
             
        
        
        
A/C/D: All of these answers are positive effects, of human water use.
By process of elimination it must be (B) Also the run off is basically stripping the soil of the nutrients a farmer would need to grow crops, so this is incredibly bad - but a problem easily fixed.