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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
MCQ
The rate of evaporation does not depends on:
  • A
    Surface area
  • B
    Wind speed
  • C
    Humidity
  • ✓
    Type of particles
✓

Answer

Correct option: D.
Type of particles
The rate of evaporation does not depend on the type of particles because it completely depends upon the surface area of the liquid if the surface area is large evaporation will be maximum.
Evaporation also depends upon wind speed, if the wind is flowing at a higher speed, then the rate of evaporation increases.
The same will be applied in the case of humidity. Humidity decreases the rate of evaporation.

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