Question

Deforestation leads to the:

• A. Increase in nutrient content of soil
• B. Floods washing away topsoil, along with nutrients
• C. Increased maintenance of soil fertility
• D. Reduction in drought-like events

Answer 1

The correct option is B Floods washing away topsoil, along with nutrients

Deforestation leads to a decrease in the water holding capacity of the soil. The movement of water from the soil surface into the ground (infiltration rate) is reduced. So, there are floods which washes away the topsoil along with nutrients. During heavy rains, trees reduce the risk of flooding by acting as a barrier to floodwater and holding the soil firmly.