Question

what is atmosphere define ​

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

❁Required Answer:

The layer of gases which surrounds the earth is called Atmosphere .

${\to{ \rm{ \pink{composition \: of \: atmosphere}}}} :$

1. Nitrogen = 78%
2. oxygen=20.5%
3. argon=0.93
4. carbondioxide=0.039.

${\to{ \rm{ \purple{layers \: of \: atmosphere}}}} :$

Troposphere:

• Troposphere is the lowest layer of earth. in this layer weather and climate changes took place.

Stratosphere:

• In this layer a thin ozone layer is there which proctects harmful ultraviolet radiation which sun produces.

Mesosphere:

• Mesosphere is the layer which metros burn up.

Theremosphere:

• In this air a phenonmenon light is occur which is called aurora .
• Theremospher helps on radio waves so thats why we can communicate using phone.

Exosphere:

• Exosphere is the uppermost layer of the earth.
• It has only a thin layer.