Concerns about hydropower projects in Arunachal Pradesh include:

Environmental impacts
Downstream water flow issues
Displacement of communities
All of the above

The correct answer is: d) All of the above

Hydropower projects in Arunachal Pradesh have been met with concerns from environmental groups and local communities. These concerns include:

  • Environmental impacts: Hydropower projects can have a significant impact on the environment, including deforestation, water pollution, and the displacement of wildlife.
  • Downstream water flow issues: Hydropower projects can also impact downstream water flow, leading to changes in river ecosystems and water availability for downstream communities.
  • Displacement of communities: The construction of hydropower projects can often lead to the displacement of local communities, who may be forced to relocate from their homes and land.

These concerns have led to protests and legal challenges against hydropower projects in Arunachal Pradesh. In some cases, projects have been delayed or cancelled due to these concerns.

Despite these concerns, hydropower projects continue to be developed in Arunachal Pradesh. The state government has argued that hydropower is a clean and renewable source of energy that can help to meet the growing energy needs of the state. However, it is important to carefully consider the environmental and social impacts of hydropower projects before they are approved.