How are clouds formed?
The formation of clouds has always been very important to man. You must be curious to know how the clouds are formed and how many kinds of clouds are there.
We know that the water of rivers, ponds, lakes and seas is converted into vapour by the solar heat and this vapour moves in air. Hot air, mixed with water vapour, being lighter, goes up high in the sky. When the air mixed with water vapour accumulates at one place, it gives the appearance of smoke. We call it a cloud.
On the basis of their different shapes and sizes, clouds have been divided into mainly four kinds:
1. Cirrus clouds: Cirrus clouds are formed at great heights. They are white in colour and look like birds’ feathers. Their height ranges from 8,000 to 11,000 metres. They are made up of small ice particles.
2. Stratus clouds: Stratus clouds are formed at a height of about 2,438 metres. They look like layers of fog. They foretell bad weather and drizzle.
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