Across
- 1. one plate goes under the other
- 3. the study of lithosphere
- 4. is when all the continents where connected
- 6. theory that the continents where connected
- 7. where the plates are spreading apart
Down
- 1. Harry Hess came up with this theory
- 2. relative motion that is predominantly horizontal in either sinistral or dextral direction
- 5. the plates are closing together