Question

manmade global warming is caused by _______. a. pollution b. water vapor c. farms d. species extinction please select the best answer from the choices provided

Explanation:

Man - made global warming is mainly caused by the release of greenhouse gases from pollution sources such as burning fossil fuels. Water vapor is a natural greenhouse gas and not a man - made cause in the context of initiating global warming. Farms can have some impact but are not the main cause. Species extinction is an effect of global warming, not a cause.

Answer:

A. pollution