UPSC Geography Oceans and continents Question Bank Oceanography

  • question_answer Examine the following statements and select the correct answer using the codes given below 1. Isotherm of \[{{20}^{o}}C\] determines the pole ward growth of corals. 2. Rise in temperature during the El Nino event can lead to coral bleaching. 3. Corals grow well at greater depths in the sea where sun light cannot reach. 4. Corals thrive well in those ocean waters where salinity varies from 27% to 30% Code:

    A)  1,2 and 3 are correct

    B)  2, 3 and 4 are correct

    C)  1,3 and 4 are correct

    D)  1,2 and 4 are correct

    Correct Answer: D

    Solution :

     Corals need sufficient light for their survival and growth and cannot grow at depth's exceeding 45.55 metres.


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