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Methane : I. is produced naturally w...

Methane :
I. is produced naturally when vegetation is burnt, digested or rotted in the absence of oxygen
II. is released from rotting garbage dumps
III. is released in paddy field & coal mines
IV. is released by fossil fuels

A

only I

B

I, II and III

C

I,II , III and IV

D

I and IV

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