Correct option is A
Soil erosion is the most prevalent form of land degradation in India. It occurs due to factors like water runoff, deforestation, improper agricultural practices, and overgrazing. Soil erosion leads to the loss of fertile topsoil, which affects agricultural productivity and can cause other environmental issues such as sedimentation in rivers and reservoirs.
1. Soil erosion:
Soil erosion is the leading cause of land degradation in India, especially in areas with poor land management and heavy rainfall.
2. Soil subsidence:
Soil subsidence, which is the sinking or settling of the ground, is not as widespread in India as soil erosion.
3. Landslide:
Although landslides occur in hilly and mountainous regions, they are not as prevalent on a national scale as soil erosion.
4. Desertification:
Desertification is an issue in certain regions (such as Rajasthan), but soil erosion is more widespread across the country.
