Question

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.

Explanation:

Mining often releases toxic chemicals. These can harm wildlife, which is a negative environmental impact. Altering ecosystems and releasing chemicals are not positive impacts. Providing new niches is not a negative impact and is not a typical result of mining.

Answer:

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