14.11: Erosion and Deposition- Challenge 2
- Page ID
- 5573
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- 1. Pillars of rock left behind by wave erosion are known as ___.
- sea-stacks
- 2. When wave action forms a hole in a cliff, it creates a ___.
- sea arch
- 3. ___ are level areas formed by wave erosion.
- wave-cut platforms
- 4. During the winter, sand is ___ from beaches, while during the summer, sand is generally ___ on beaches.
- eroded; deposited
- 5. Deposition occurs when water motion ___.
- slows down
- 6. In general, erosion is greater than deposition on beaches during the ___.
- winter
- 7. A potential problem with groins is that ___.
- beaches on the down-current side may be starved of sand
- 8. ___ are essentially artificial barrier islands.
- Breakwaters
- 9. Seawalls are built ___, while breakwaters are built ___.
- onshore; offshore
- 10. Wind pushes large sediments along the ground in a process known as ___.
- creep
- 11. Wind moves small sediments in the air by ___.
- suspension
- 12. Wind carries intermediate-sized sediments close to the ground by ___.
- saltation
- 13. A sand dune has a ___ slope on the side from which wind blows, and a ___ slope on the opposite side.
- gentle; steep
- 14. Sand dunes form when an obstacle forces wind to ___.
- slow down and deposit sand
- 15. As wind slows, it deposits ___ particles first.
- large