9th Class Science Improvement in food resources Question Bank Improvement in Food Resources

  • question_answer
    Direction: Read the given passage and answer the following questions.
    Three different cropping patterns, viz. X, Y and Z are applied to get the maximum benefits from a crop field. In X, two or more crops are grown together in the same field in different rows or strips. In Y also, two or more crops are grown together but not in definite rows. In Z, different crops are grown on a piece of land in a pre-planned succession. These cropping patterns maintain soil fertility and crop yield.
    Which of the following options is correct regarding criteria of crop selection for these cropping patterns?

    A) In Z, the crops used must have different maturation times.

    B) In Y, the crops used must require the similar amount and type of nutrition.

    C) In X, the crops used should have different sowing and harvesting dates.

    D) In Z, the crops should not be of different growth habits, i.e., should be either both tall or both dwarf.

    Correct Answer: C


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