Question

ow does mining impact the environment?
It has a positive impact on the environment by permanently altering the ecosystem.
It has a positive impact on the environment by releasing chemicals into the environment.
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.
It has a negative impact on the environment by providing new niches for wildlife to inhabit.

Answer 1

Correct choice: "It has a negative impact on the environment by allowing toxic chemicals to harm wildlife."

Why: mining commonly releases heavy metals and acid mine drainage, tailings, and other pollutants into soil and water. These toxins bioaccumulate and poison plants and animals, degrade habitats, and reduce biodiversity.

Why the others are wrong or misleading:
- Permanently altering the ecosystem is typically a negative effect, not a positive one.
- Releasing chemicals into the environment is a harmful (negative) impact, not a positive one.
- Creating new niches can happen (e.g., pit lakes, spoil heaps can be colonized), but that is not generally framed as a primary environmental benefit and does not outweigh the widespread negative impacts from pollution and habitat loss.