Chesapeake bay is an area that  has suffered from overharvesting and eutrophication. Eutrophication is an enrichment of water by nutrients salts that causes structural changes in the ecosystem such as increased formation of algae and aquatic plants, depletion of fish species among other effects. The greatest source of nitrogen and phosphorus in a Chesapeake bay is agriculture
        
             
        
        
        
C, the act of deforestation is contrary to conservation efforts.
        
                    
             
        
        
        
The answer would be C. Digestive
The <em />circulatory system <em>circulates</em> the blood and lymph throughout the body. The excretory system <em>excretes</em> the body wastes.
        
             
        
        
        
Answer: 
vapor and elastic potentiol energy 
Explanation: