Question

which was CH4 main sourse

Answer 1

Natural sources of ch4 are wetlands termites and oceans

Answer 2

Hope it helps...

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✔️Wetlands are the largest natural source of methane.

OR

✔️Methane is also emitted from a number of natural sources. Natural wetlands are the largest source, emitting CH4 from bacteria that decompose organic materials in the absence of oxygen. Smaller sources include termites, oceans, sediments, volcanoes, and wildfires.

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