| A | B |
|---|
| geology | science that deals with the history of the earth |
| Crust | hard external layer of the earth |
| island | surrounded by water |
| isthmus | narrow strip of land connecting two large land areas |
| delta | the alluvial deposit at a mouth of a river |
| magma | molten rock beneath the earth |
| faults | fracture in the earth's crust |
| Continental Drift Theory | the theory that the continents were all one land mass called "pangea" |
| Archipelago | expanse of water with many scattered island |
| butte | isolated hill or mountain steep |
| subduction | the action or process of the edge of one crustal plate descending below the edge of another |
