Explanation:
putting hand in front of flash light
 
        
             
        
        
        
Answer:
dear user the answer is option A.oxygen level and water temperature and C.salinity and water temperature.
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The answer is B because A is being changed .
        
             
        
        
        
<span>3) Oceans
The oceans are a massive carbon sink, and part of the positive reinforcement of the greenhouse gas cycle is that, as the oceans become warmer, then tend to release more carbon dioxide dissolved in the water which in turn drives temperatures warmer.</span>