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milk 69
chapter e vocab
| Term | Definition |
|---|---|
| geosphere | all the soils and loose rocks on earths surfaces |
| crust | thin outer layer composed of light elements |
| mantle | the layer benesath the crust |
| lithosphere | earths outer layer |
| asthenosphere | the layer beneath the lithosphere |
| tectonic plates | glide across the underlying asthenosphere |
| erosion | the removal and transport of surface matierial |
| atmosphere | a mixture of gases |
| troposhere | the atmospheric layer nearest earths surface |
| stratosphere | above the stratosphere |
| ozone | a molecule made up of three oxygen atoms |
| radiation | the transfer of energy across space and the atmosphere |
| conducction | the flow of heat from a warmer object to a colder object |
| convection | the transfer of heat by aire currents |
| greenhouse effect | when gases trap heat near the earth |
| water cycle | the continous movement of water inbto the air onto land and then back to water sources |
| evaporation | the process which liquid water is heated by the sun |
| condensation | water vapors form water droplets on dust particles |
| precipitation | particles falling from clouds called rain |
| salinity | the concentration of all the dissolved salts in the ocean water |
| fresh water | a little more than 3 percent of the earths water |
| biosphere | the narrow layer around earths surface |