What types of pollution in the great lakes has human activity caused check all that apply

Mercury Pollution

Explanation: It is one of the leading causes of fishing consumption advisories in the Great Lakes, and coal-fired power plants are the largest human - caused source of Mercury

one of the negative side effects were the economic losses the events of september 11th caused. many, many people lost their jobs as a result of a downturn in the economy after the terrorist attacks.

a.   it resulted in widespread unemployment.