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1.
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Meteoroids burn up in this layer, producing meteor trails.
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2.
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Satellites orbit in this layer to relay phone calls and television pictures.
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3.
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Rain, snow, storms, and most clouds occur in this layer.
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4.
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The ozone layer here absorbs ultraviolet radiation.
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5.
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Due to more air molecules per unit volume, air pressure here would be greater.
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6.
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A person runs out of breath quickly because fewer air molecules are present per cubic meter of air.
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7.
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Sea level yields the greatest density & highest pressure.
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8.
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4,000 km above Mt. Everest. Water would boil at less than 73 degrees C.
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9.
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4K --> 13,123 feet: boiling point = 188 degrees Fahrenheit
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10.
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28 K --> 91,863 feet: 3 times higher than Mt. Everest. Could you breathe?
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11.
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Argon, CO2, Neon, Helium, Methane, Krypton, & Hydrogen
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12.
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Oxygen
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13.
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Nitrogen
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