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weather part 1 vocab
| Term | Definition |
|---|---|
| air pressure | the measure of the force with which air molecules push on a surface. |
| altitude | elevation (height) above sea level |
| troposphere | lowest layer of earths atmosphere; 0-17 km above earth surface, site of weather, organism, contains most atmospheric water vapor |
| stratosphere | 2nd layer of atmosphere, extends from 10 to 30 miles up; location of ozone layer, absorbs 95% of ultraviolet radiation; temperture increases with altitude increase. |
| thermosphere | the fourth layer of the atmosphere, in which temperature increases as altitude increases |
| exosphere | the outer layer of the thermosphere. expending outward to pace |
| Atmospheric gas | nitrogen makes up 78%, 21% oxegyn and 15 of carbon dioxide water gases and other gases |
| Nitrogen | most abundant gas in the atmosphere (78%) |
| oxygen | gas that makes up 21% of the air in the earth atmosphere. it passes into the bloodstream at the lungs and travels through the body cells |
| Carbon dioxide | a green house gass: a gas that absorves the radiation heat |
| trace gases | gases such as hydrogen, helium, carbon dioxide, and argon that exist in very small quantities in the atmosphere; gases that makeup 1% of the earths atmosphere |
| water vapor | water in form of gas |
| fossil fuels |
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