Write short notes on:Bleaching of coral reefs.

1.	Write short notes on:Bleaching of coral reefs.
Answer» 1. When temperature changes, corals throw out the algae living in their tissues. 2. These algae are responsible for their colour. 3. An increase of 1°C – 2°C in ocean temperatures for a long time can lead to bleaching, turning corals white. 4. If corals are bleached for prolonged periods, they eventually die. 5. Coral bleaching leads to death of large amounts of corals.

Answer»

1. When temperature changes, corals throw out the algae living in their tissues.

2. These algae are responsible for their colour.

3. An increase of 1°C – 2°C in ocean temperatures for a long time can lead to bleaching, turning corals white.

4. If corals are bleached for prolonged periods, they eventually die.

5. Coral bleaching leads to death of large amounts of corals.

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