Which among the following methods of separation depends upon increase in temperature and pressure?
A
Handpicking
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B
Threshing
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C
Winnowing
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D
Evaporation
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Solution
The correct option is D
Evaporation
Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. Handpicking, threshing and winnowing (as a method of separation) do not depend upon the temperature and pressure.