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study guide
| Term | Definition |
|---|---|
| oxygen | organisms need it to break down food for energy |
| carbon dioxide | minor role in absorbing heat. plant fertilizer |
| Ozone | Absorbs ultraviolet radiation from the sun |
| water vapor | major role in absorbing heat, source of condensation for clouds |
| water | source of rain |
| ice | makes up snow sleet and hail |
| dust and salt | provides solid surface for water vapor to condense |
| troposphere | weather, life form, jets |
| stratosphere | ozone layer, weather balloons |
| mesosphere | meteors (shooting stars) burn here |
| thermosphere | ionosphere, auroras |
| exosphere | some h and he satellites |
| radiation | transfer of energy through space |
| conduction | transfer of energy by contact |
| convection | transfer of energy by flow of a heated substance |
| temperature | measurement- how rapidly or slowly molecules move. |
| heat | transfer of energy |
| dew point | temperature to which air must be cooled to reach saturation |
| humidity | the amount of water vapor the air can hold at an given temperature |
| density | mass (of air) per volume |
| air pressure | force exerted by molecules of atmosphere as they are pulled towards earths center by gravity |
| warm air | as temperature increases, air molecules move faster and the air becomes less. |
| cold air | as temperature decreases, air molecules move more slowly and the air becomes more dense |
| Lifted condensation level | level at which a parcel of air becomes saturated |
| cumulonimbus | clouds that create severe weather. |
| continental tropical | ct |
| maritime tropical | mt |
| continental polar | cp |
| maritime polar | mp |
| arctic | ca |
| polar easterlies | east |
| prevailing westerlies | west |
| trade winds | east |