UPSC General Studies Sample Paper General Studies Sample Paper-9

  • question_answer
    Consider the following statements with regard to globigerina ooze, a type of ocean deposit.
    1. It is calcareous in nature.
    2. It is seldom found at a depth greater than 2000 fathoms because of their high solubility.
    3. It covers the largest area of ocean surface. 
    Which of the statements given above are correct?

    A)  1 and 2           

    B)  2 and 3

    C)  1 and 3

    D)  All of these

    Correct Answer: D

    Solution :

    [d] Calcite compounds are soluble in acidic water and since colder water are acidic, such compounds are found in tropical and temperate regions and at lesser depths. Globigerina covers approximately 47.1 of pelagic deposits and are generally found on continental margins, oceanic ridges and plateaus.

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