How 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 creating new niches for wildlife to inhabit

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

Explanation:

Mining refers to the act of extracting minerals and other valuable solids from the earth's crust. The process of mining can have adverse effect on an ecosystem in the sense that wildlife is threatened during the process.

During the mining process, chemicals, which are toxic to living organisms, from the minerals gets washed into the areas surrounding the mining site. Thereby, causing serious harm to the wildlife living in those areas.

the correct option is option a