Across
- 2. A tool used to spread water across fields.
- 4. ocean ridge an undersea chain of mountains that is part of a long system underwater mountains.
- 7. a waterfall
- 8. A type of fabric woven from flax plants.
Down
- 1. A devise that reflects sound waves off underwater objects and records the echos.
- 2. floor spreading The process by witch crust sinks back into the mantle at a colliding plate boundary.
- 3. Good for growing crops
- 5. The area near a rivers mouth where the water deposits fine soil.
- 6. A deep undersea valley where crust sinks toward the mantle