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Model Paper 7 — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceModel Paper 72 Marks
Question
What is evaporation? What are the factors affecting it?
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Answer

Evaporation is the process by which water (liquid) changes to vapours (gaseous form) at any temperature below its boiling point.
Factors on which evaporation depends:-
(a) Surface area
(b) Humidity
(c) Wind speed
(d) Temperature

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