Question

Draw a neat, labelled diagram showing the different layers of the atmosphere. Name the layers and mark their approximate distance from the surface of the earth. Mark some interesting features associated with each layer of the atmosphere.​

Answer 1

There are five layers of atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere.

Explanation:

Earth's atmosphere consists of five main layers which differs in temperature gradient.

Troposphere

• Its width range is 0 to 15 kilometres.
• It is the first layer of earth's surface which consists of 85 to 90 percent of earth's atmosphere mass.
• Troposphere is where the weather occurs.
• Thermal profile of troposphere is the cause for earth's heated environment by solar radiation.

Stratosphere

• Its distance from earth is 12 to 15 km.
• It consists of the ozone layer which is primarily responsible for absorbing the harmful rays of sun radiation.

Mesosphere

• Its width range is 50 to 90 km.
• Its distance from earth is 50 to 80 km.
• The temperature is very less as we go up in this layer.
• Meteors burn up in this layers while they enter the earth's atmosphere.

Thermosphere

• This is the layer that is first exposed to sun's radiation.
• Its distance from earth's surface is 80 to 700 km.
• Here the temperature increases with altitude.
• It includes ionosphere which is filled with charged particles.
• Here the auroras take place.

Exosphere

• This is the upper limit of earth's atmosphere where the atmosphere merges into space.
• Its distance from earth is 700 to 10000 km.

Answer 2

Mainly, There are 5 Layers of the Atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere.

Explanation:

• The troposphere is the atmosphere's lowest layer. Clouds, rain, and snow make up the majority of our weather. The temperature changes by about 6.5°C per kilometre as the distance above the earth increases. Depending on the weather, the temperature varies from day to day.
• Much of the ozone in the atmosphere is found in the stratosphere, which extends upwards from the tropopause to about 50 km. Because of the absorption of UV radiation from the sun, temperatures in the stratosphere rise with altitude.
• The mesosphere is the layer of the atmosphere that lies above the stratosphere. The temperature drops with height once more, dropping to around -90°C at the "mesopause."
• The thermosphere is a region above the mesopause where temperatures begin to rise again with altitude. The absorption of energetic ultraviolet and X-Ray radiation from the sun causes this temperature rise. The ionosphere is the upper 80 kilometres of the Earth's atmosphere. Solar radiation causes it by knocking electrons off molecules and atoms. We can receive shortwave radio broadcasts from other parts of the world because the ionosphere reflects and absorbs radio waves.
• The exosphere is the region above 500 kilometres. It is mostly made up of oxygen and hydrogen atoms, but because there are so few of them, they rarely collide.