The atmosphere is a layer that covers a gas planet, including earth, the planet's surface until far in space. In the earth, the atmosphere there is a height from 0 km above the surface, up to about 560 km from the top surface of the earth. Atmosphere in which several top layer, which is named according to the phenomena that occur in the layer. Transition layer between the one with the other progress gradually. Studies on the atmosphere in the first made to solve the problem weather, refraction phenomena when the sun rise and sink, and the flickering stars. With equipment installed in the vehicle space, we can obtain a better understanding of the atmosphere below the facts that occurred in it.
Earth atmosphere consists of nitrogen (78.17%) and oxygen (20.97%), with a little argon (0.9%), carbon dioxide (the variable, but approximately 0.0357%), moisture, gas and other. Atmosphere protects life on earth to absorb the ultraviolet radiation from the sun rays and reduces temperature extremes between day and night. 75% of the atmosphere there is in 11 km from the surface of the planet.
The atmosphere does not suddenly have a limit, but rather diminish slowly with the increase of height, there is no definitive boundary between the atmosphere and outer space.
Thursday, July 23, 2009
what is that ???
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