2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-5

  • question_answer
    Which one of the following layers of soil contains the least humus?

    A) A-horizon

    B) B-horizon

    C) C-horizon

    D) All of these

    E)  None of these

    Correct Answer: C

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