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10th Class Science Sample Paper Science Olympiad Model Test Paper-14

  • question_answer
    Find the amount of energy at the fourth trophic level of the food chain, if the first trophic level has 20,000 joule of energy.

    A) 2000 J

    B) 200 J

    C) 20 J

    D) 2 J

    E) None of these

    Correct Answer: C

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