Geographic
An atmosphere (from Greek ἀτμός (atmos), meaning 'vapor', and σφαῖρα (sphaira), meaning 'sphere'[1][2]) is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.
The atmosphere of Earth is mostly composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%) with carbon dioxide and other gases in trace amounts. Oxygen is used by most organisms for respiration, nitrogen is fixed by bacteria and lightning to produce ammonia used in the construction of nucleotides and amino acids and carbon dioxide is used by plants, algae and cyanobacteria for photosynthesis.
The atmosphere helps protect living organisms from genetic damage by solar ultraviolet radiation, solar wind and cosmic rays. Its current composition is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms. The term stellar atmosphere describes the outer region of a star, and typically includes the portion starting from the opaque photosphere outwards. Stars with sufficiently low temperatures may form compound molecules in their outer atmosphere.
97% area of the atmosphere are exit between 29km of the earth's surface but the scientists thought that the top layer of atmosphere is 10,000km from the sea level. Then there exit the Near Emptiness. This Near Emptiness divide the planet.
The first 100km air layer is called Climatology. The next layer is called Aeronomy.
*. Arrangement of different layers of Atmosphere:-
The temperature and the density of Atmosphere keep more pressure on earth's surface.
According the change of temperature the atmosphere is divided into 6 layers. According to the components the atmosphere divided into 2 layers.
*. Difference of layers according to the change of Temperature:-
The layers,according to change of the atmosphere are - (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere (5) Exosphere and (6) Magnetosphere.
It's altitude 18km after Equator line and on the north and south pole
it's altitude 8 km.
When the altitude growing up the temperature of the layer are quickly go down. 1°C less after 165metre and at least the temperature of Troposphere stand on on -57°C.
The altitude of Stratosphere 12-50km.
In this layer even we growing up, then the temperature become manifest. After 50km altitude the temperature come to 0°C.
The altitude of this layer 50-80km.
On the 80km altitude the temperature come to undermost -83°C. The top layer of this layer is called Menopause.
The altitude of this layer 80-480km.
On this layer the temperature of air quickly become manifest. When the altitude stand on 200km the temperature of this layer come to 900°C.
[5] Exosphere:- The next layer of Thermosphere is called Exosphere.
The altitude of Exosphere 16,000km and it is the last layer of Atmosphere.
The temperature of this layer seems to low. Fro the Hydrogen & Helium gas the layer is very important to us.
To live alive in the earth we all have to depend on the atmosphere and the atmosphere also a vital chapter in our life. For the charming atmosphere the all creatures of the world are till alive.
An atmosphere (from Greek ἀτμός (atmos), meaning 'vapor', and σφαῖρα (sphaira), meaning 'sphere'[1][2]) is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.
The atmosphere of Earth is mostly composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%) with carbon dioxide and other gases in trace amounts. Oxygen is used by most organisms for respiration, nitrogen is fixed by bacteria and lightning to produce ammonia used in the construction of nucleotides and amino acids and carbon dioxide is used by plants, algae and cyanobacteria for photosynthesis.
The atmosphere helps protect living organisms from genetic damage by solar ultraviolet radiation, solar wind and cosmic rays. Its current composition is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms. The term stellar atmosphere describes the outer region of a star, and typically includes the portion starting from the opaque photosphere outwards. Stars with sufficiently low temperatures may form compound molecules in their outer atmosphere.
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- Wikipedia
The earth is surrounded by a gassy layer,it is called the Atmosphere. For the gravity the atmosphere attach with the earth's surface and it is spread out to the sky. When the earth revolve west to east it also revolve at the same time. If we go to up from the sea level then the pressure of the air are increase too much low. The barometer help us to measure the pressure of atmosphere.
The first 100km air layer is called Climatology. The next layer is called Aeronomy.
*. Arrangement of different layers of Atmosphere:-
The temperature and the density of Atmosphere keep more pressure on earth's surface.
According the change of temperature the atmosphere is divided into 6 layers. According to the components the atmosphere divided into 2 layers.
*. Difference of layers according to the change of Temperature:-
The layers,according to change of the atmosphere are - (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Thermosphere (5) Exosphere and (6) Magnetosphere.
[1] Troposphere:- Troposphere is the most lower layer in the atmosphere. In the layer dusts, water vapour, cloud, storm are exist.
It's altitude 18km after Equator line and on the north and south pole
it's altitude 8 km.
When the altitude growing up the temperature of the layer are quickly go down. 1°C less after 165metre and at least the temperature of Troposphere stand on on -57°C.
[2] Stratosphere:- The next layer of Troposphere is called Stratosphere. The layer is full of silence. There are no cloud, no storm and no rainfall. Here exist the O3 layer. The top layer
of Stratosphere is called Stratopause.The altitude of Stratosphere 12-50km.
In this layer even we growing up, then the temperature become manifest. After 50km altitude the temperature come to 0°C.
[3] Mesosphere:- After Stratosphere the temperature again come down.
The altitude of this layer 50-80km.
On the 80km altitude the temperature come to undermost -83°C. The top layer of this layer is called Menopause.
[4] Thermosphere:- The Thermosphere spread out 80-480km from the earth's surface and the temperature of this layer is too hot for this reason the layer is called Thermosphere.
The altitude of this layer 80-480km.
On this layer the temperature of air quickly become manifest. When the altitude stand on 200km the temperature of this layer come to 900°C.
[5] Exosphere:- The next layer of Thermosphere is called Exosphere.
Here we found hydrogen gas and helium gas.
The altitude of Exosphere 16,000km and it is the last layer of Atmosphere.
The temperature of this layer seems to low. Fro the Hydrogen & Helium gas the layer is very important to us.
[6] Magnetosphere:- The next zone of Exosphere is called Magnetosphere.
The scientists till keep on their research about this layer.
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