Across
- 3. the gradual movement of the continents across the earth's surface through geological time.
- 4. a dramatic change of form, appearance, or character.
- 6. (of rock) that has formed from sediment deposited by water or air.
- 8. the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
- 9. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Down
- 1. tending to be different or develop in different directions.
- 2. denoting or relating to rock that has undergone transformation by heat, pressure, or other natural agencies, e.g. in the folding of strata or the nearby intrusion of igneous rocks.
- 3. the tendency of unrelated animals and plants to evolve superficially similar characteristics under similar environmental conditions.
- 5. matter that settles to the bottom of a liquid; dregs.
- 7. relating to or involving volcanic processes.