The concentration of a substance is the quantity of solute present in a given quantity of solution.
 
        
             
        
        
        
Answer:
Impacts on Ocean Life
Coral Reefs.
Oysters, Mussels, Urchins and Starfish.
Zooplankton.
Plants and Algae.
Fish.
Explanation:
 
        
                    
             
        
        
        
Answer:A large number of autotrophic bacteria—bacteria that produce their own food—live near hydrothermal vents and submarine volcanoes. 
These bacteria are considered chemosynthetic, meaning they produce food from chemical reactions usually involving carbon dioxide, oxygen, or hydrogen
 
        
             
        
        
        
A. The atmosphere is layered
        
             
        
        
        
-0° freezing point ice or ice cream