Multiple choice general knowledge

Reefs are formed very slowly by Corals. How much a Coral Reef grow in a year (average)?

  1. 0.1 cm

  2. 1 cm

  3. 10 cm

  4. 100 cm
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coral reefs grow very slowly, with an average growth rate of approximately 1 cm per year. This slow growth rate means reef damage from human activities or climate change can take decades or centuries to recover naturally. The 1 cm/year figure is a standard benchmark in marine biology.

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