A potential environmental impact of mining activities in Karnataka:

Deforestation
Water Pollution
Air Pollution
All of the above

The correct answer is D) All of the above.

Mining activities can have a significant impact on the environment, including deforestation, water pollution, and air pollution.

Deforestation is the clearing of forests to make way for other uses, such as mining. This can lead to the loss of habitat for many plants and animals, as well as the disruption of water cycles.

Water pollution can occur when mining activities contaminate water bodies with sediment, chemicals, and heavy metals. This can make the water unsafe for drinking, bathing, and fishing.

Air pollution can occur when mining activities release dust, fumes, and other pollutants into the air. This can cause respiratory problems for people living near mining sites.

In addition to these environmental impacts, mining activities can also have a negative impact on the social and economic well-being of communities. For example, mining can lead to the displacement of people from their homes, as well as the loss of jobs and livelihoods.

It is important to consider the potential environmental and social impacts of mining activities before they are undertaken. There are a number of ways to mitigate the negative impacts of mining, such as using sustainable mining practices and developing community-based development plans.