THE EARTH
PHYSICAL GEOGRAPHY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A small mountain
|
|
|
A steep valley
|
|
|
A coral reef in the shape of a horse shoe
|
|
|
None of the above
|
Detailed explanation-1: -An atoll is a ring-shaped coral reef, island, or series of islets. An atoll surrounds a body of water called a lagoon. Sometimes, atolls and lagoons protect a central island. Channels between islets connect a lagoon to the open ocean or sea.
Detailed explanation-2: -Atolls are usually circular or oval in shape, with an open lagoon in the center. Barrier reefs are similar to fringing reefs in that they also border a shoreline; however, instead of growing directly out from the shore, they are separated from land by an expanse of water.
Detailed explanation-3: -Solution: They are circular and horse-shoe shaped coral reefs describes “Atoll”.
Detailed explanation-4: -An atoll is a roughly circular (annular) oceanic reef system surrounding a large (and often deep) central lagoon. Examples of this reef type are common in French Polynesia, the Caroline and Marshall Islands, Micronesia, and the Cook Islands.