Question

Use of fossil fuels contributes to which of the following?

Only air pollution
Only global warming
Only water pollution
air pollution, water pollution, and global warming

I thought it was the last one

Answer 1

global warming and air pollution are linked as changing the percentage of molecules of air considered which affect heath as pollution , co2 make green house effect (global warming) and fossil fuels produce sulfur dioxide and nitrogen oxide which causes acid rains and affect the circulation of water in nature, so it makes water pollution as-well.
As a result the last answer is true as you said.

Answer 2

Thanks x

Answer 3

you are welcome :D