You are presented with the question "Transpiration is when what moves from plants into the blanket of air around the earth." and the following answer choices: 
- nitrogen
 - evaporation
 - kinetic energy
 - heat energy
 - cells
 - air
 - water vapor
 - Condensation

Now knowing that transpiration is when water vapor moves from plants into the atmosphere and atmosphere is the blanket of air around the earth, choose the best answer.


 

       water vapor  