14.11: Erosion and Deposition- Challenge 2

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