Which process describes the release of water from plant leaves into the atmosphere?

Which process describes the release of water from plant leaves into the atmosphere?

• A. Transpiration
• B. Evaporation
• C. Condensation
• D. Precipitation

Answer: (A)

Transpiration is the process by which water absorbed by plant roots moves through the plant and is released as water vapor from the leaves, mainly through stomata. This is the best description for water leaving a plant and entering the atmosphere because it specifically involves plant tissues and the stomatal openings that regulate gas exchange and water loss. Evaporation describes water turning into vapor from any surface, not necessarily through plant tissues. Condensation is water vapor turning into liquid, which is the reverse of vapor release. Precipitation is water that falls to Earth as rain or snow. Transpiration also connects to the plant’s water transport system, pulling water up from the roots through the xylem.

Transpiration is the process by which water absorbed by plant roots moves through the plant and is released as water vapor from the leaves, mainly through stomata. This is the best description for water leaving a plant and entering the atmosphere because it specifically involves plant tissues and the stomatal openings that regulate gas exchange and water loss. Evaporation describes water turning into vapor from any surface, not necessarily through plant tissues. Condensation is water vapor turning into liquid, which is the reverse of vapor release. Precipitation is water that falls to Earth as rain or snow. Transpiration also connects to the plant’s water transport system, pulling water up from the roots through the xylem.