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Which one of following reflects back more sunlight as compared to other three? [UPSC 2010 (CS-P)]

Sand desert
Paddy crop land
Land covered with fresh snow
Prairie land

Read Solution (Total 1)

land covered with fresh snow
8 years agoHelpfull: Yes(0) No(0)

UPSC Other Question

Which features of some species of blue – green algae helps promote them as bio-fertilizers? [UPSC 2010 (CS-P)]

They convert atmospheric methane into ammonia which the crop plants can absorb readily.
They induce the crop plants to produce the enzymes which help convert atmospheric nitrogen to nitrates.
They have the mechanism to convert atmospheric nitrogen into a form that the crop plants can absorb readily.
They induce the roots of the crop plants to absorb the soil nitrates in larger quantities. Which one of the following is associated with Darwinism? [UPSC 2008]

Law of Use and Abuse
Mutation
Theory of Germplasm
Natural Selection