Which one of the following statements with regard to growth of coral r

Which one of the following statements with regard to growth of coral reefs is not correct?

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Coral can grow abundantly in fresh water.

It requires warm water between 23 °C-25 °C.

It requires shallow saltwater, not deeper than 50 metres.

It requires plenty of sunlight to aid photosynthesis.

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CDS-2 – 2018

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The correct answer is A) Coral can grow abundantly in fresh water.

Corals are marine invertebrates that primarily inhabit shallow, warm, clear saltwater environments. They are sensitive to changes in salinity and cannot survive or grow abundantly in freshwater. The statement that coral can grow abundantly in freshwater is factually incorrect.

Coral reefs require specific conditions to thrive: warm water (typically between 20°C and 28°C, with optimal growth often cited between 23°C-25°C), sufficient sunlight for the symbiotic algae (zooxanthellae) living within their tissues, clear water free from excessive sediment and pollution, and shallow depths (generally not deeper than 50-70 metres, where sunlight can penetrate). They also need a specific range of salinity found in oceans.

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