The atmosphere (not the sky) has several layers of different gases at different temperatures.
They are:
Troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. As you climb higher in this layer, the temperature drops from about 17 to -52 degrees Celsius. Almost all weather is in this region.
Tropopause separates the troposphere from the next layer. The tropopause and the troposphere are known as the lower atmosphere.
Stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. Compared to the troposphere, this part of the atmosphere is dry and less dense. The temperature in this region increases gradually to -3 degrees Celsius, due to the absorbtion of ultraviolet radiation. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. Ninety-nine percent of "air" is located in the troposphere and stratosphere.
Stratopause separates the stratosphere from the next layer.
Mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. In this region, the temperatures again fall as low as -93 degrees Celsius as you increase in altitude. The chemicals are in an excited state, as they absorb energy from the Sun.
Mesopause separates the mesophere from the thermosphere.
The regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the middle atmosphere by scientists.
Thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high. The temperatures go up as you increase in altitude due to the Sun's energy. Temperatures in this region can go as high as 1,727 degrees Celsius. Chemical reactions occur much faster here than on the surface of the Earth. This layer is known as the upper atmosphere.
Exosphere starts at the top to the thermosphere and continues until it merges with interplanetary space.
2007-01-17 15:25:11
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answer #1
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answered by Anonymous
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Seven Layers Of Atmosphere
2016-12-18 07:17:59
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answer #2
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answered by ? 4
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Scientists have found that the Earth’s atmosphere consists of layers positioned on top of each other, and that these layers differ according to their density. Hence, scientists have set seven different layers of the Earth’s atmosphere. Moreover, the number “7” has many indications in the Quran and in the prophet’s sayings (peace be upon him).
Though, some scientists agree that these layers are exactly the same as the seven skies the Quran has mentioned about. Allah (SWT) said: “And we adorned the nearest (lowest) heaven with lamps to be as an adornment as well as to guard. Such is the Decree of Him, the All Mighty, the All- Knower” [Fussilat: 12]. Lamps refer to the stars which, as we know, are located external to the earth’s atmosphere and even external to our solar system. In addition, the closest star to us is 4.3 light years distant from us.
2013-12-03 04:31:22
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answer #3
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answered by Muhammad Shakeeb 1
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You can see only cloud layers in the sky but not see the layers of atmosphere which are classified by the scientists and researcher. But I think you did not mean these layers, rather the layers stated in the religious books, if this the case then I can tell that scientists are exploring the unoverse and still they did not discovered such layers in the sky (space). But you can guess the number of skyies as minimum as the number of planets in the universe.
2007-01-17 20:38:37
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answer #4
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answered by Lutfor 3
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I don't know of 7 layers, but the atmosphere is divided into 5 that I know of. I've been a pilot for 45 years and have flown in two of them, once up to about 19 miles. To help you understand a little more, air is air whether at 500 feet altitude or 50,000 feet. The end of our atmosphere is about 75 miles up, but the air is still composed of the same gases. There's just less pressure up there. Check out this site: http://en.wikipedia.org/wiki/Earth's_atmosphere
It's not a bad article.
2007-01-17 15:43:37
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answer #5
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answered by Anonymous
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