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unit 3 weather
| Question | Answer |
|---|---|
| troposphere | closest to us |
| stratosphere | Contains the ozone layer; commercial jets sometimes cruise near its lower region; temperature increases with altitude here. |
| mesosphere | Meteors burn up here; temperatures decrease with altitude. |
| thermosphere | Auroras occur; very thin air; temperature increases with altitude; satellites begin to orbit in upper parts. |
| exosphere | Outermost layer; very sparse gas; satellites orbit here. |
| evaporation | Liquid water becomes water vapor. This process absorbs energy (heat from the Sun). |
| transportation | Water released from plants into the air; also absorbs energy (driven by heat for evaporation from leaves). |
| condensation | Water vapor cools and forms droplets (clouds). Condensation releases energy into the atmosphere (latent heat). |
| perception | Droplets fall as rain/snow due to gravity — this is driven by gravity. |
| surface runoff and infiltration/percolation | Water moves across or into the ground; largely driven by gravity |
| sublimation | Solid (ice/snow) becomes water vapor, absorbs energy. |
| what does Colling of condensation require | Condensation requires cooling of water vapor and tiny particles (dust, smoke) called condensation nuclei. |