Urban development increases demand for especially after large storms or floods. many islands are formed from underwater activity. if a cliff is observed to have retreated from its previous location, this is due to an abyssal hill is found in the deposition and are two processes that cause sediment accumulation and give a shoreline its particular shape. respond to the following based on your reading. briefly describe how different types of reefs can form around an island.

1. seawalls

2. volcanic

3. mass wasting

4. ocean basin

5. erosion

Explanation:

6. Reefs form from volcanic activity on an island in the ocean. This initially forms a fringing reef, but sea level rise can cause the reef to lie farther out from the island, forming a barrier reef. If the island ever subsides below sea level, the reef is called an atoll.

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