Question

20 points on layers of atmosphere for class 6th
plz friends help me ​

Answer 1

1.Toposphere

2.Stratosphere

3.Mesosphere

4.Thermosphere

5.Exosphere

Answer 2

❥ ᭄ QUESTION:

➡ 20 points on layers of atmosphere for class 6th

❥ ᭄ ANSWER:

➡ The atmosphere is divided into four different layers, those are:

1. Trophosphere
2. Stratosphere
3. Mesosphere
4. Thermosphere

1. Trophosphere:

It is the densest layer of the atmosphere. This is the portion we live in & is, therefore, most familiar to us. It is this layer of atmosphere where all weather changes continuously take place due

to presence of water vapours & dust particles. In the Trophosphere, on an average, the temperature decreases at a rate of 1C with every 165m ascend. This is called the normal lapse rate. This is why, temperature is very low in high mountains.

2. Stratosphere:

Above the layer of Trophosphere lies clam & clean air which is called stratosphere. The total a sence if water vapours & dust particles in this layer prevents the formation of clouds. Thus,

it provides visibility at its finest. Aircrafts often fly through the lower layer of stratosphere because it facilities visibility and this contributes to easy flying conditions. The zone, which demarcates

line of separation between these two layers (Trophosphere & Stratosphere), is defined as tropopause. The temperature is almost constant in the lower part of the stratosphere.

➡ A special form of oxygen, called ozone is found in the stratosphere. This ozone layer is very important as it acts as a filter & absorbs harmful ultraviolet sun rays from reaching the earth's surface. This layer, acts as a shield over the earth's surface. In the absence of the ozone gas

in the atmosphere. life would have been impossible on the surface if the earth.

3. Mesosphere:

Above the stratosphere lies another layer known as Mesosphere. It is a cold layer where temperature generally decreases with increasing altitude. Meteors burn up in this layer.

4. Thermosphere:

Above the Mesosphere is thermosphere where the air is very thin. In the lower layer of thermosphere (ionosphere), ion-particles are present in concentration. These ion-particles

electrically charged & play qan important role in our wireless communication. Radio waves can be sent to different places through these ion-particles. They enable wireless communication over the earth's surface. Beyond the thermosphere,about 160Okm above the earth's surface, the earth's atmosphere gradually merges with very thin gases of the outer space.

[I guess, it's very big answer, so you can make this answer short.]

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