Q: Which of the following have coral reefs?
a) Andaman and Nicobar Islands
b) Gulf of Kachchh
c) Gulf of Mannar
d) Sunderbans
The Correct Answer is 1, 2 and 3 only.
Coral Reefs
- Most of the world’s coral reefs are located within the tropical zone between 30º N and 30º S latitude.
- The most favourable temperature for the growth of the coral reefs is between 23°C to 25°C.
- The Coral reefs in India are mainly restricted to the Andaman and Nicobar Islands, Gulf of Mannar, Gulf of Kutch, Palk Strait and the Lakshadweep islands. Hence, Option 1 is correct.
- All of these reefs are Fringing reefs, except Lakshadweep which are Atolls. While Sundarbans do not have coral reef.
- Corals can survive only under saline conditions with an average salinity between 27% to 40%.
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