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12. Condensation - Dew, fog and frost

One or more statements given below may be correct. Choose all the correct statements.

When there is a drop in temperature, the water-holding capacity of the air decreases, as a result of it, condensation occurs, and small water droplets called dew is formed.
When warm air rises, it cools down and gains more capacity to hold water vapour.
When warm air rises, it cools down and loses its capacity to hold water vapour.

Precipitation occurs when the clouds reach the dew point.
Precipitation occurs when the clouds reach the boiling point.
Ordinary fog is formed due to water condensing on dust and other particles like smoke from houses and industries.

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