Question

how does atmosphere acts as a blanket?

Answer 1

Because it not allow the exchange of gases or any other cosmos material in and out of the earth. so, it protect us from them.

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Answer 2

The mass or body of gases that surrounds the Earth or any heavenly body is called atmosphere. Earth's atmosphere extends from the surface to a height of more than 1000 km,beyond which it merges gradually with solar atmosphere.

Earth's atmosphere acts as a protective blanket for the organisms to exist. It keeps the average temperature of the Earth fairly steady during the course of whole year. In addition, the Ozone shield of the atmosphere absorbs most of the harmful UV radiations coming from the sun thereby protecting human beings and animals from their harmful effects.