| A | B |
|---|
| earthquakes | these happen at all plate boundaries |
| black smoker | water is 350 C and high in minerals |
| transform plate boundary | 2 plates side by each other |
| subduction | one plate goes under another |
| basalt | rock the ocean floor is made of |
| hot spot | what formed Hawaii |
| epipelagic | the only layer of ocean water that receive light throughout |
| mesopelagic | the twilight zone with some light at top of zone |
| divergent plate boundary | where hydrothermal vents occur |
| convergent plate boundary | trenches are found here |
| photophores | cell that produce light |
