NIKI121
Posted:
Wed Nov 04, 2009 8:49 am
Joined: 03 Nov 2009
Posts: 4
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The atmosphere is composed mainly of carbon dioxide with impurities of nitrogen, oxygen and water vapor. There stratus clouds, thick layers of several kilometers and consisting of droplets of concentrated sulfuric acid. These clouds completely obscure the surface from our gaze. The dense atmosphere is the cause of extremely strong greenhouse effect, which causes heating of the surface to about 480 ° C. Indeed, the surface temperature of Venus is higher than that of Mercury, although the remote is almost double the distance from the Sun. In the upper regions of the atmosphere raging winds with speeds around 350 km / h, and surface winds are weak, with only a few speed kmh. Venus probably once had large amounts of water, like Earth, but they have vanished long ago and now it is completely dry. Earth would have the same fate if it were located closer to the Sun.
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