How does large-scale deforestation primarily affect the water cycle?

Question

How does large-scale deforestation primarily affect the water cycle?

1. A. Decreases surface runoff
2. B. Decreases evapotranspiration (Correct answer)
3. C. Increases regional rainfall
4. D. Increases groundwater levels

Correct Answer

Option B — Decreases evapotranspiration

Detailed Solution & Explanation

The correct answer is Decreases evapotranspiration.

Key Points

• After deforestation, fewer trees mean less water transpired to the atmosphere (evapotranspiration decreases).
• This reduces moisture recycling, leading to decreased regional rainfall and drier conditions.