Question

what is atmosphere?
$answer \: in \: 50 - 100 \: words$

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Answer 1

Answer:

An atmosphere 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

Answer 2

The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction. Without the atmosphere there could be no life on Earth. The atmosphere: ... keeps the climate on Earth moderate compared to that of other planets.

• Troposphere. The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). ...
• Stratosphere. The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. ...
• Mesosphere. ...
• Thermosphere. ...
• Ionosphere. ...
• Exosphere. ...

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