Name: Characteristics of Air
Uploaded: 2019-07-19
Duration: 3 min 28 s
Description: Air is in constant flow and represents movement and expansion. Air is in continuous flow and represents movement and expansion. Let's explore more about air.

Question

Explain the different layers of the atmosphere.

Accepted Answer

Different layers of atmosphere are troposphere, stratosphere, mesosphere, thermosphere, ionosphere and exosphere.

The first layer of the atmosphere above the earth's surface is troposphere. It is made of gases that we need to breathe and for other purposes.

The next layer of our atmosphere is called the stratosphere which extends from $12 - 50 km$ above the earth's surface. It contains the ozone layer that shields the earth from the ultraviolet rays of the sun.

$50 - 80 km$ above the surface of the earth lies the mesosphere. The air is especially thin in this layer.

The fourth layer, the thermosphere rises about $80 km$ above the earth's surface. This layer is known as the upper atmosphere.

The ionosphere extends from about $80 - 600 km$ . It reflects the ionised energy of the sun.
Extending from the top of the thermosphere to $10000 km$ above the earth is the exosphere. In this layer the atmosphere thins out into space.

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