You are presented with the question "What can better dissolve nutrients and oxygen?" and the following answer choices: 
- lakes
 - SO2
 - Raft
 - a solute
 - puddles
 - rivers
 - currents
 - lochs

Now knowing that running water is better able to dissolve oxygen and nutrients than standing water and large, warm rivers hold populations but few occur in cold running water, choose the best answer.


 

      rivers   