| A | B |
|---|
| navigable | deep and wide enough to allow passage of ships |
| dry framing | a farming technique that leaves land unplanted every few years in order to gather moisture |
| sirocco | a hot, dry wind from northern Africa |
| hub | a central point of concentrated activity and influence |
| seismic activity | earthquakes and volcanic eruption |
| subsidence | a geological phenomenon in which the ground in an area sinks |
| Renaissance | the revival of art, literature, and learning that took place in Europe during the fourteenth, fifteenth and sixteenth centuries |
| volcano | an opening in the earth's crust from which molten rock escapes to the surface |
| lava | Magma, or molten rock from the earth's mantle, that breaks through the surface of the earth during volcanic activity |
| columnar rock | volcanic rock that splits into columns as lava cooled |
| plume | a very hot spot in the earth's mantle |
| crater lake | a body of water that occupies a bowl-shaped depression around the opening of an extinct or dormant volcano |
| graben | a long, narrow area that has dropped between two faults |
| inhabitable | able to support permanent residents |
| tsunami | a huge wave caused primarily by a disturbance beneath the ocean, such as an earthquake or a volcanic eruption |
