Answer: Option [D]The humidity of air depends upon All of the above. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in higher relative humidity in cool air than warm air.
Answer: Option [C]The correct answer is Exosphere. Above Troposphere, temperature increases rapidly with height in the Stratosphere layer as it houses the ozone layer which absorbs ultraviolet (UV) rays from the sun. Again, temperature increases rapidly with height in Thermosphere which comprises Ionosphere (lower part) and Exosphere (upper part)). Temperature in Exosphere which is the uppermost layer of the atmosphere reaches up to more than 4500° Celsius.
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Answer: Option [B]The correct answer is freezing. Hail forms when a thunderstorm updraft lifts a water droplet above the freezing level in the atmosphere. The frozen water droplet then accretes super-cooled water or water vapor, which freezes once it comes in contact with the frozen droplet.
