Question

4. Answer the following questions in one or two sentences each:
(1) What is atmosphere ? OR What is meant by atmosphere?​

Answer 1

Answer:

the blanket of mixture of gases that envelopes the earth and protect us from harmful rays of sun .

Answer 2

Explanation:

An atmosphere (from Ancient Greek (atmos), meaning 'vapour', and (sphaira), meaning 'ball' or 'sphere' is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.