Question

How can excess felling of trees affect ecosystems?

• A. It leads to excessive rainfall.
• B. It improves air quality.
• C. It promotes wildlife conservation.
• D. It reduces biodiversity.

Hint:

Trees regulate rainfall patterns through transpiration; excessive felling disrupts this balance, affecting local climate.

Answer 1

The Correct Option is A

Excessive felling of trees impacts ecosystems in multiple ways. One of the effects often observed is the disruption of the water cycle. Trees play a significant role in transpiration, where water is absorbed by roots and released as water vapor from leaves into the atmosphere. This process contributes to cloud formation and rainfall. Therefore, when many trees are cut down, the balance of water vapor released can be disturbed, potentially leading to abnormal rainfall patterns, which might include excessive rainfall in some areas.
However, it is important to note that deforestation generally tends to decrease overall rainfall locally due to reduced transpiration. Still, in some cases, changes in microclimates can cause irregular or heavy rainfall events. Additionally, excess felling can cause soil erosion, loss of habitat, and reduced biodiversity.