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the answer is either air pressure, inosphere, nitrogen, oxygen, smog, stratosphere, exosphere, or troposphere

2006-09-19 15:28:33 · 3 answers · asked by Anonymous in Science & Mathematics Earth Sciences & Geology

3 answers

stratosphere

2006-09-19 15:30:39 · answer #1 · answered by Wars 1 · 0 0

Hi,
The answer that you're after is: troposphere
Most of the Earth's weather occurs within the troposphere. The atmosphere is made up of approx 78% nitrogen, 20% oxygen and various other gases. The vast majority of these gases are located in the troposphere (the lowest layer in the atmosphere) since they are too heavy to escape the gravitational forces of the Earth. However, a few of these heavier gases do escape into the stratosphere but they are so few in comparison to lower elevations. That is why it gets harder to breathe at high altitudes since oxygen is less common. Smog (a photochemical pollutant) is typically located near sea level and does not rise too high into the atmosphere for extended lengths of time. However, since smog is made up of hydrocarbons, ozone and black carbon, the height it does reach in the troposphere is governed by it size and weight. Generally the smaller the particle size the longer the particles remain suspended in the atmosphere.

Check out:

http://en.wikipedia.org/wiki/Atmospheric_layers

I hope that this sort of helps.

2006-09-21 15:06:43 · answer #2 · answered by skymap 1 · 0 0

The lowest layer of the atmosphere is the troposphere.

;-D It is a nice day today in the troposphere.

2006-09-19 15:45:36 · answer #3 · answered by China Jon 6 · 0 0

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