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An atoll is formed from an island, but it isn't entirely an island. It's a coral reef that makes the different. The reef grows in a ring around the island and the island erodes, until little if any of it is above the surface of the water and the coral reef remains.
Islands are any small body of land surrounded by water. Islands in the middle of the ocean are usually volcanic and islands in lakes and near continents are usually just areas of the continental shelf surrounding the continent with a higher elevation.
To actually answer your question, the KEY difference is the reef.
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Where can you find an atoll?
In the island of Bora Bora.
What is the largest coral atoll in the world?
The largest coral atoll in the world is the Kwajalein Atoll.The largest atoll in land area is Christmas Island.
What is a narrow sandy island formed from a large bar lying off the coast of the mainland?
Key atoll barrier island
What is the difference between a country and an island?
A country is a political entity, an island is a geological and geographical land form.
What is the differnce between a continent and a island?
The difference between a continent and a island is that continents sit on their own continental lithosphere and islands do not. Greenland is the largest island and Australia is the smallest continent.
What are some examples of atoll island?
bikini atoll
Where can you find an atoll?
In the island of Bora Bora.
What is an island around a lagoon?
atoll
Ring shaped island?
ATOLL
Where would a atoll be located?
An atoll is an island of coral that partially or completely surrounds a lagoon.
What is a ring shape coral islands surrounding a lagoon?
A coral atoll.
What is the main Island of Kure Atoll?
It is called Green Island.
What is yaren's atoll?
An atoll is a coral island that encircles a lagoon partially or completely. Yaren, is a district and constituency of the Pacific nation of Nauru. It is the capital of Nauru. Yaren does not have an atoll, but instead is a part of an island in Micronesia.
What is the largest coral atoll in the world?
The largest coral atoll in the world is the Kwajalein Atoll.The largest atoll in land area is Christmas Island.
A reef that surrounds a volcanic island is what?
atoll
Polynesia site of nuclear testing by what country?
Bikini atoll, USEniwetok atoll, USChristmas Island, UK
Is Midway Island an atoll?
Midway Atoll consist of three Islands, Sand, Eastern and Spit Islands.
