The progressive warming up of the earth\'s surface is mainly due to th – McqOptions

MCQOPTIONS

1.	The progressive warming up of the earth\'s surface is mainly due to the
A.	blanketing effect of CO2 in the atmosphere.
B.	automobile exhaust.
C.	thickening of ozone layer.
D.	de-forestation
Answer» B. automobile exhaust.

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