Question

Environmentalists suggest planting trees near the river banks. Which of the following reason justify the statement?

• A. Trees provide oxygen
• B. Trees prevent soil erosion
• C. Trees reduce rainfall
• D. Trees are a source of firewood

Answer 1

The correct option is B Trees prevent soil erosion

The river water carry away the soil from the banks of the river along its flow. The roots of trees hold the soil tightly. Thus, due to presence of trees, the water flow is not able to carry away the soil. Hence, planting trees along the bank of rivers prevent soil erosion.