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| a simple mixture of gases that is naturally odorless, colorless, tasteless and formless, blended so thoroughly that it behaves as if it were a single gas. |
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| The 4th general atmosphere in Earth's history, a gaseous mixture of ancient origine, the principle substance being air, as well as major industrial and chemical raw material. |
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| The "outer sphere" where the rarefied, less dense atmosphere is nearly a vacuum (right above where the atmosphere ends). |
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| The weight of the atmosphere. It pushes in on all of us. |
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| The outer atmosphere, it begins in the exosphere and continues down 80 km. Less than .001% of the atmosphere's mass is in this. Where the International Space Station is. The blend of gases is not uniform. |
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| Below the heterosphere, all the way to the Earth's surface. The blend of gases is not uniform. |
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| In the homosphere, temperatures are up to 2200 degrees F, however there is very little heat. |
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| Kinetic energy is the vibrational energy that we can measure as temperature, however it is not dense enough to feel heat. |
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| The greater number of molecules in the denser atmosphere transmit their kinetic energy as sensible heat. |
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| In the homosphere, is the coldest layer of the atmosphere (-130 degrees F). Location of noctilucent clouds. |
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| In the heterosphere, goes to about 11-31 miles from the Earth's surface. |
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| This is where we are and the home of the biosphere. About 90% of the total mass of the atmosphere is in this section, along with all weather and pollution. |
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| Where temperatures decrease rapidly as altitude increases rapidly. |
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| This is when the normal lapse rate varies because of local weather conditions (weather). |
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| Of two parts, the ionosphere is the outer part of the atmosphere that absorbs cosmic rays, gamma rays, X-rays and radiation |
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| The second of the two parts, closest to Earth, that is the Ozone layer. It contains ozone, which is a highly reactive oxygen molecule made of three oxygen atoms. It absorbs ultraviolet. |
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