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| the condition of earths atmosphere at a particular time and place |
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| is the layer of gases that surround the earth |
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| a form of oxygen that has three oxygen atoms in each molecule instead of the usual 2 |
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| water in the form of a gas (invisible) |
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| a change to the atmosphere that has harmful effects |
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| solid particals and gases that are released into the air |
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| a thick brownish haze that forms when certain gases react with sun light |
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| gases that react in the sunlight and produce a form of oxygen |
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| a layer of warm air that prevents the rising air from escaping |
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| rain that is more acidic than normal caused by the release of molecules of sulfur dioxide and nitrogen oxide into the air |
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| the layer of the atmosphere that contains a higher concentration of ozone than the rest of the atmosphere |
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| chloroflourocarbons (CFCS) |
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| chlorine compounds formulary used in air conditioners, refrigerators and spray cans (gases that are responsible for the hole in the ozone layer) |
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| the trapping of heat near the Earth's surface (trapped by water vapor, carbon dioxide and other gases that form a blanket around the Earth) |
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| the gradual increase in temperature of the Earth's atmosphere |
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| the amount of mass in a given volume of air |
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| the force pushing on an area or surface |
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| the result of the weight of a column of air pushing down on an area |
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| an instrument that is used to measure changes in the air pressure |
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Definition
| consists of a glass tube open at the bottom and practically filled with mercury. The space in the tube above the mercury is almost a vacuum - it contains no air. The open end of the tube rests in a dish of mercury. Air pressure pushing on the mercury in the dish forces the mercury in the tube higher. |
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| an instrument that measures change in air pressure with out using a liquid. Changes in the shape of an air-tight metal box, cause a needle on the barometer dial to move. |
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| elevation above sea level |
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| the lowest layer of Earth's atmosphere where weather occurs |
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| the second lowest layer of Earth's atmosphere; the ozone layer is located in the upper stratosphere |
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| the middle layer of Earth's atmosphere; the layer in which most meteoroids burn up. |
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| the outer most layer of Earth's atmosphere. |
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| the lower part of the thermosphere where electrically charged particles called ions are found. |
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| a colorful glowing display in the sky caused when particles from the sun strike oxygen and nitrogen atoms in the ionosphere; also called the Northern Lights. |
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| the outer layer of the thermosphere, extending outward into space. |
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