What is the main process by which water moves from land to the atmosphere during photosynthesis?

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

Answer: (B)

Verified step by step guidance

1. Understand the context of the question: The problem is asking about the process by which water moves from land to the atmosphere during photosynthesis. This involves plant physiology and the water cycle.
2. Recall the concept of transpiration: Transpiration is the process by which water is absorbed by plant roots, transported through the plant, and then released as water vapor through small openings called stomata in the leaves.
3. Eliminate incorrect options: Condensation refers to the change of water vapor to liquid, respiration is the process of energy production in cells, and precipitation is the falling of water from the atmosphere to the ground. None of these describe the movement of water from land to the atmosphere during photosynthesis.
4. Connect transpiration to photosynthesis: During photosynthesis, plants open their stomata to take in carbon dioxide. This opening also allows water vapor to escape, which is the process of transpiration.
5. Summarize the answer: The main process by which water moves from land to the atmosphere during photosynthesis is transpiration, as it involves the release of water vapor through stomata while the plant is actively photosynthesizing.