Fact 1: Transpiration is when water vapor moves from plants into the atmosphere.

Fact 2: Water is made up of H2O molecules.

Given the two facts above, answer the question "what vapor moves from plants into the atmosphere during transpiration?" with the following options: 
- outer space
 - clouds
 - H2O
 - CO 2
 - CFCs
 - CO2
 - Dew
 - H20


 

   H2O      