Question

by which process do plants lose their water to the atmosphere?
○ sublimation
○ transpiration
○ condensation
○ precipitation

Explanation:

• Sublimation is the process of a solid turning directly into a gas (e.g., dry ice to $CO_2$ gas), not related to plant water loss.
• Transpiration is the process by which plants lose water vapor through their stomata to the atmosphere.
• Condensation is the change of gas to liquid (e.g., water vapor to dew), not plant water loss.
• Precipitation is water falling from the atmosphere (rain, snow, etc.), not plant water loss.

Answer:

B. transpiration