How does the water inside plants return to the atmosphere?
runoff
evaporation
precipitation
transpiration

The right answer is transpiration.

Leaves transpirate by their stomata, small pores that connect the inside of the leaf with the external environment. The plant thus uses phenomena of variations of the opening of the stomata.

Transpiration plays a major role in the water absorption of the plant. It is in fact largely thanks to it that the sap rises in the xylem.

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics