Basic General Knowledge
On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for this difference is that

current of air carry the heat away from the earth on a clear night
the clear sky allows the cold of outer space to reach the earth
on a cloudy night the clouds are warm and therefore retard the cooling
the clear sky allows radiant energy to escape readily from the earth

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Basic General Knowledge
Modvat is

All of these
scheme which allows a manufacturer to claim instant reimbursement of the excise duty paid on the raw
modified value added
a term used in excise which is a new scheme of indirect taxes

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