Soil erosion is a significant challenge in Arunachal Pradesh due to:

Steep slopes and heavy rainfall
Overgrazing
Deforestation
All of the above

The correct answer is: d) All of the above.

Arunachal Pradesh is a state in northeastern India. It is the largest state in India by area, and it is also one of the most sparsely populated states in the country. The state is home to a diverse range of ethnic groups, and it is also home to a number of important wildlife habitats.

Soil erosion is a significant challenge in Arunachal Pradesh. The state is characterized by steep slopes and heavy rainfall, which make it prone to soil erosion. Overgrazing and deforestation are also major contributors to soil erosion in the state.

Soil erosion can have a number of negative impacts on the environment. It can lead to the loss of topsoil, which is the most fertile layer of soil. It can also lead to the loss of biodiversity, as plants and animals are displaced from their habitats. Soil erosion can also contribute to the siltation of rivers and streams, which can have a negative impact on fisheries and water quality.

There are a number of things that can be done to prevent soil erosion in Arunachal Pradesh. These include:

  • Planting trees and other vegetation on steep slopes.
  • Reducing the amount of grazing on rangelands.
  • Practicing sustainable agriculture.
  • Building terraces and other erosion control structures.

By taking these steps, it is possible to reduce the risk of soil erosion in Arunachal Pradesh and protect the state’s environment.

Here are some additional details about each of the options:

  • Steep slopes and heavy rainfall: The state of Arunachal Pradesh is characterized by steep slopes and heavy rainfall. This combination of factors makes the state prone to soil erosion. When rain falls on a steep slope, it can easily carry away the topsoil. This can lead to the loss of fertile land and the displacement of plants and animals.
  • Overgrazing: Overgrazing is another major contributor to soil erosion in Arunachal Pradesh. When too many animals graze on a piece of land, they can damage the vegetation and expose the soil to erosion. This can lead to the loss of topsoil and the displacement of plants and animals.
  • Deforestation: Deforestation is also a major contributor to soil erosion in Arunachal Pradesh. When trees are cut down, the soil is no longer protected from the elements. This can lead to the loss of topsoil and the displacement of plants and animals.

All of these factors contribute to the problem of soil erosion in Arunachal Pradesh. By taking steps to address these factors, it is possible to reduce the risk of soil erosion and protect the state’s environment.