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If condensation occurs closer to the earth’s surface, what types of forms become visible?

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If condensation and solidification of the water vapour in the atmosphere closer to the earth surface are visible, they are in the form of fog, dew or frost.

(i) Fog:

  • The temperature of the layers of the air near the surface of the earth reduces. As the temperature reduces, water vapour condenses.
  • In this process the water vapour turns into microscopic water particles and float in the air.
  • When the density of these droplets in the air increases it leads to the formation of fog

(ii) Dew:

  • When moisture-laden air near the earth surface comes in contact with very cold objects condensation of water vapour takes place.
  • They turn into very small water droplets and stick to the surface of cold objects, e.g. eg: leaves and this is called dew.

(iii) Frost:

  • When the temperature of the air reaches less then 0 degree Celcius the water droplet stuck to the surface of the cold objects and freezes.
  • This frozen water droplet is called as frost.

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