Difference between revisions of "Atoll"
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| − | An atoll is a circular ring of coral that encloses a shallow pool, it is normaly covered by a thin layer of soil. Generally on an atoll | + | An atoll is a circular ring of coral that encloses a shallow pool, it is normaly covered by a thin layer of soil. Generally, only tropical plants, like palm trees, can thrive on an atoll. In many cases, atolls are built up on the crater of a volcanoe that has sunk below the sea. On the side of the atoll that the wind usually blows against, there is a break in the circle so the pool has an opening into the surrounding sea. |
Revision as of 02:33, January 16, 2007
An atoll is a circular ring of coral that encloses a shallow pool, it is normaly covered by a thin layer of soil. Generally, only tropical plants, like palm trees, can thrive on an atoll. In many cases, atolls are built up on the crater of a volcanoe that has sunk below the sea. On the side of the atoll that the wind usually blows against, there is a break in the circle so the pool has an opening into the surrounding sea.