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10th Class Science Sources of Energy Question Bank Sources of Energy and Natural Resources

  • question_answer
    Which of the following statements is correct?
    Statement 1: Presence of lactobacillus in river indicates contamination of river water.
    Statement 2: Presence of Coliform bacteria in river indicates contamination of river water.

    A) Statement 1 is correct only

    B) Statement 2 is correct only

    C) Both the statements are correct.

    D) Both the statements are incorrect

    E) None of these

    Correct Answer: B

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