| A | B |
|---|
| what is the inner most part of the earth's crust | core |
| mantle- | the second layer of the earth's crust |
| the outter most part of the earth's crust | crust or outer mantle |
| the boundary where two plates collide | boundary |
| the masses of all continents conected | Pangea |
| process that forms extra seafloor | seafloor spreading |
| second layer of the earth's crust | outer core |
| radiaton- | is the transfer of energy by electromagnetic waves |
| conduction- | is the transfer of heat from density differences in the air |
| what are polar easterlies | they are the winds that blow from the northeast to the southwest |
| what are jet streams | narrow belts of wind |
| realitive humidity- | the measure of the amount of water vapor in the air |
| what are the four kinds of precipitation | rain, sleet, snow, hail |
| what is a tornado- | a tornado is a violent whirling wind that moves ina narrow path over land |
| station model- | information expressed using symbols |
| what are the 5 divisions of earth's atmosphere in order | polarzone, temperate, tropical, temperte, polar |
| greenhouse effect- | process by which heat is trapped by gasses in the earth's atmosphere |
| what % of marine pollution takes plasce on land based sources | 80% |
| air mass- | is a large body of air that has properties of the land it originates |
