| A | B |
|---|
| hydrosphere | water--ocean,rivers,lakes |
| lithosphere | land--earth's crust |
| atmosphere | air |
| biosphere | supports life |
| continental shelf | underwater entension of coastal plain |
| core | hot but solid |
| mantle | next to outer core |
| crust | outer layer - surface |
| continental drift | theory that continents were one |
| plate tectonics | physical process that created physical features |
| magma | molten rock |
| subduction | heavy sea plate slides under continental plate |
| accretion | debris that causes continents to grow outward |
| spreading | sea plates pulling apart |
| fold | plates moving against each other causing bends |
