Which one of following reflects back more sunlight as compared to other three?
Sand desert
Paddy crop land
Land covered with fresh snow
Prairie land
Which one of following reflects back more sunlight as compared to other three?
Seawater (i.e. saltwater) freezes at: |
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The Indian population receives the largest dose of ionizing radiation from: |
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What range of frequencies are usually referred to as audio frequencies for humans? |
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Titan is the largest natural satellite of planet |
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Water boils at a lower temperature on the hills because |
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Which is the longest? |
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Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force? |
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The most serious environmental pollution from a nuclear reactor is |
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A temperature of 295 K is equivalent to approximately |
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Defect of colour blindness can be remedied by the use of |
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