Question

Large scale deforestation decreases

• A. Soil erosion
• B. Rainfall
• C. Drought
• D. Global warming

Answer 1

The correct option is B

Rainfall

Deforestation refers to cutting trees in order to eliminate a forest.

The correct option is B.

Explanation of correct option:

1. Plants absorb water from the ground and release it to the atmosphere via transpiration.
2. Thus, trees are the major sources of water evaporation.
3. Deforestation leads to cutting down of trees and thus less water absorption leading to disturbance in the water cycle and reduction in rainfall.

Explanation of incorrect options:

Option A:

1. The roots of the plants hold the soil tightly preventing soil erosion.
2. Cutting of trees leads to loosening of soil, thus leading to soil erosion.

Option C:

Deforestation is one of the main reasons causing drought.

Option D:

1. Plants utilize CO₂, and thereby reduce its concentration in the environment.
2. Cutting of trees leads to the accumulation of this greenhouse gas in the atmosphere leading to global warming.

Final answer: Large-scale deforestation decrease rainfall.