Which of the following statements regarding humidity is/are correct?
1. It is a ratio between the actual amount of water vapour present in the atmosphere and the maximum amount it can hold at a given temperature.
2. When the relative humidity is high, more water evaporates from the skin.
3. Higher the air temperature lower the relative humidity of the air.
Select the answer using the code given below :
1 only
2 and 3 only
1 and 3 only
1, 2 and 3
For election to the Lok Sabha, a nomination paper can be filed by
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
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