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2:50
YouTube
Marine Science Facts
What are Atolls? EXPLAINED!
Atolls are ring-shaped coral reef systems formed as volcanic islands sink and corals grow upward over millions of years. This video explains how fringing reefs become barrier reefs and eventually atolls, why lagoons form, and why atolls are biodiversity hotspots. We also explore their role in coastal protection, fisheries, and the risks they ...
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6 months ago
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