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weather voc part 1
| Term | Definition |
|---|---|
| air pressure | the meausure of the force with which air molecules push on a surface |
| altitude | elevation above sea level |
| troposhere | lowest layer of earts atmosphere 0-17 km above earths surface site of weather, organisms, 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 ; temperature with altitdude increase |
| thermosphere | the fourth layer of the atmosphere, in which temperature increase as altitude increases |
| Exosphere | the outer layer of the thermosphere extending outward into space |
| atmospheric gases | nitrogen makes up 78% 21% oxygen and remaining 1% is carbon dioxide, water vapor and other gases |
| nitrogen n2 | most abundant gas in the atomosphere |
| oxygen | gas that makes up 21% of the air in Earth's atmosphere it passes into the blood stream at the lungs and travels to all body cells |
| Carbon dioxide | A greenhouse gas, a gas that absorbs and radiates heat |
| Trace gases | Gases such as hydrogen, helium carbon dioxide and argon that exists in very small quantities in the atmosphere; gases that make up less than 1% of Earth's atmosphere |
| Water vapor | Water in the form of a gas |
| Fossil fuels | A natural substance formed from the buried remains of ancient organisms that can be used as a source of energy |
| greenhouse gases | gases in earths atmosphere that trap heat near the surface |
| Water cycle | The continuous process by which water moves from Earth's surface to the atmosphere and back |
| Evaporation | The change of a substance from a liquid to a gas |
| Condensation | The change from gas to liquid |
| Precipitation | Any form of water that falls from clouds and reaches Earth's surface |
| 20.Transpiration - | evaporation of water from the leaves of a plant |
| Crystallization | the process by which a substance becomes a solid, sort of like freezing. |
| Surface Runoff | water that flows over land until it reaches lakes, rivers, or other areas |
| Groundwater Flow | water that is flowing beneath Earth’s surface |
| .Dew | water that has condensed on a cool surface overnight from water vapor in the air |
| .Frost | ice formed when water vapor changes directly into ice crystals |
| Ozone (O3) | part of Earth's upper atmosphere; it protects people by absorbing harmful from the sun. |
| Greenhouse Effect | a warming of Earth's surface and the air above it. It is caused by gasses the air that trap energy from the Sun |
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