Basic General Knowledge
Kanishka was

the only ruler of India whose territory extended up to central Asia
a great conqueror but later became a follower of Buddha
the king of Kushan dynasty
All of these

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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

the clear sky allows radiant energy to escape readily from the earth
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

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