SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    With reference to oil spills, consider the following statements:
    1. They make the water deficient in oxygen.
    2. They can cause algal blooms.
    Which of the statements given above is/are correct?

    A)  1 only 

    B)  2 only

    C)  Both 1 and 2    

    D)  neither 1 nor 2

    Correct Answer: A

    Solution :

    [a] Oil Spills make the water deficient in oxygen. This causes problem for the marine animals. Algal bloom is associated with eutrophication, and oil spills have no role here. On the contrary, oil spills kills algae. Spilled oil can harm the environment in several ways, including the physical damages that directly impact wildlife and their habitats (such as coating birds or mammals with a layer of oil), and the toxicity of the oil itself, .which can poison exposed organisms.

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