Which of the following are the necessary conditions for the growth of – McqOptions

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1.	Which of the following are the necessary conditions for the growth of coral reefs?1. Photic conditions2. Clean and sediment-free water3. Sea salinity of 6%4. Tropical seawater with a temperature of 20°C to 21°CSelect the correct answer using the code given below:
A.	1, 2 and 4 only
B.	2 and 4 only
C.	1 and 3 only
D.	1, 2, 3 and 4
Answer» B. 2 and 4 only

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