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

Fact 2: Water is made up of H2O molecules.

Given the two facts above, answer the question "what is better able to dissolve oxygen and nutrients when it's running over standing?" with the following options: 
- bass
 - lake
 - H20
 - h2o
 - heat
 - vitamins
 - hydrogen
 - bogs


 

    h2o     