Question

differentiate between the natural and man made sources of pollution

Answer 1

man made sources of pollution are cars,factories, etc

Answer 2

When it comes to differentiating between natural and man made pollution, the issue isn't how much, it's what and where. Nature doesn't produce plastic, benzene, hexamethylchloride, DDT, etc. In nature, ozone isn't emitted into the troposphere, mercury is locked up in rock instead of bioaccumulating in our waterways, and oil is trapped under bedrock. It's serious because although natural pollution is processed quite well, nature has no clue what to do when it encounters something that it's never seen before or something that isn't where it should be.