Question

blank is an envelope of air surrounding the earth that protect us from harmful rays of the Sun​

Answer 1

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The atmosphere surrounds Earth and protects us by blocking out dangerous rays from the sun. The atmosphere is a mixture of gases that becomes thinner until it gradually reaches space. It is composed of Nitrogen (78%), Oxygen (21%), and other gases (1%)

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Answer 2

Answer:

Ozone layer is an envelope of air surrounding the earth that protect us from harmful rays of the Sun