Fact 1: Running water is better able to dissolve oxygen and nutrients than standing water.

Fact 2: Mineral nutrients are interrelated.

Given the two facts above, answer the question "Running water is able to do what to minerals and oxygen?" with the following options: 
- evaporation
 - dissolve them
 - reducing acid rain
 - recycling
 - clean them
 - separate them
 - hydration
 - cool them


 

  dissolve them       