Passage: 'Desertification' is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic... [Full passage text]

According to the passage, which of the following are the consequences of decline in forest cover?
1. Loss of topsoil
2. Loss of smaller rivers
3. Adverse effect on agricultural production
4. Declining of groundwater

Select the correct answer using the code given below.

Question

Passage: 'Desertification' is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic... [Full passage text]

According to the passage, which of the following are the consequences of decline in forest cover?
1. Loss of topsoil
2. Loss of smaller rivers
3. Adverse effect on agricultural production
4. Declining of groundwater

Select the correct answer using the code given below.

Accepted Answer

Correct Option: 1, 2, 3 and 4 According to the passage, the decline in forest cover (deforestation) triggers several ecological imbalances. The text explicitly links the loss of forest canopy to the destruction of topsoil (1) due to water erosion, the disappearance or drying up of smaller rivers and streams (2) due to the loss of natural water-retaining sponges, adverse impacts on agricultural productivity (3) due to soil degradation and micro-climate changes, and the depletion of groundwater tables (4) because water run-off increases and infiltration decreases. Since all four phenomena are described as cascading consequences of reduced forest cover, statements 1, 2, 3, and 4 are correct. Thus, option D is the correct choice.

According to the passage, which of the following are the consequences of decline in forest cover?1. Loss of topsoil2. Loss of smaller rivers3. Adverse effect on agricultural production4. Declining of groundwaterSelect the correct answer using the code given below.

हिंदी में प्रश्न एवं आदर्श उत्तर

According to the passage, which of the following are the consequences of decline in forest cover?
1. Loss of topsoil
2. Loss of smaller rivers
3. Adverse effect on agricultural production
4. Declining of groundwater

Select the correct answer using the code given below.