
Atoll
Geographical Feature
Understand 'atoll' as a geographical term for a specific type of island, not any island.

While studying maps, we learned that Bora Bora is not just an island, but specifically an atoll.
Natural Formation
An atoll is a natural formation, so using 'man-made atoll' would be incorrect.

The teacher explained that atolls are formed by coral, not constructed by people.
Lagoon Presence
Always associate atolls with a central lagoon; it's what distinguishes them from other islands.

He was fascinated that each atoll in the aerial photo enclosed a tranquil lagoon.
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