| A | B |
|---|
| innermost layer of eather | core |
| Earth layer containing the asthenosphere | mantle |
| continental drift | idea that continents moved to their current positions on Earth by plowing through the ocean floor |
| large landmasses made of all continents | Pangaea |
| Earth's uppermost layer | crust |
| process that forms new seafloor | sea-floor spreading |
| boundry where plates move apart from each other | divergent boundry |
| boundry at which plates colllide | convergent |
| place where plates slide past one another | transforn fault |
| water that flows parallel to the shore | longshore current |
| any kind of sediment that is deposeted parallel to a shore | beaches |
| steep seafloor beyond the continental shelf | continental slope |
| plant process that produces oxygen | photosynthesis |
| colony made of many corals | reef |
| animals and plants that live on the ocean floor | benthos |
| drifting marine plants and animals | plankton |
| when hot water is added to a body of water | thermal pollution |
| low areas that collect water | basin |
| lowest point on a wave | trough |
| highest point on a wave | crest |
