Question

WHAT IS ATMOSPHERE....................................?
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Answer 1

$\bf\huge\underline\red{Atmosphere }$

The mixture of gases that surrounds the earth or any other star, planet, etc.

Answer 2

$\huge\bold{ANSWER}$

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$\huge\bold{Atmosphere \pink↓}$

The earth is a unique planet . Its capacity to support life makes it different from all other planets . The earth is surrounded by an envelope of air which is called the atmosphere .

The Atmosphere is very useful to living beings on the earth . In fact , atmosphere is one of the necessary components of the biosphere and without air life would not have been possible on our planet .

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There are four types of different layers of the atmosphere are as follows :-

$\bold\purple{1. \:Troposphere\: \pink→}$ The Troposphere is the lowest and the densest layer of the atmosphere . Almost all dust particles and water vapours are contained in it . Thus , all weather phenomena occur in which layer .

$\bold\blue{2. \: Stratosphere\: \orange→}$ Stratosphere is the second layer of the atmosphere . Most the ozone of the atmosphere is contained in this layer . Long distance aircrafts fly in the lower part of the stratosphere .

$\bold\red{3. \:Mesosphere\: \green→}$ Mesosphere is the third layer & lies above the stratosphere . This laya protects us from the meteors which create damage on the surface of the earth . The mesosphere has coldest temperature in the atmosphere .

$\bold\pink{4. \: Thermosphere\: \blue→}$ It lies above the mesosphere .

It can divided into two parts :-

$\sf\blue{(1) \: Ionosphere \: →}$ Ionosphere is a part of thermosphere and this layer reflects radio signals back to the earth thus making radio communications possible .

$\sf\red{(2) \: Exoxphere \: →}$ The upper portion of the thermosphere is called exoxphere . Air in exoxphere is extremely thin light weight of ashes like hydrogen and helium are present in this layer .

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