Hello,
Its called "Dissolved Oxygen".
Hope this helps
~HotTwizzlers
        
                    
             
        
        
        
Answer:
Greenhouse gases, including water vapor, carbon dioxide, and methane, form a small percentage of the overall atmosphere, yet they play an important role, trapping the heat required for life on Earth.
Explanation:
 
        
             
        
        
        
Answer:
yes
Explanation:
because oxygen and carbon dioxide is formed into water by the gills
 
        
             
        
        
        
2.everyday equations describe -everyday processes                                                                                                                                                                    1.Chemical reactions-produce new substances.
3.what does the symbol in a chemical equation mean-<span>that the reaction is reversible</span>