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

MCQOPTIONS

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

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