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

  • question_answer
    Read the following statements (a - c) and select the option which correctly fills up the blanks in any two statements.
    (a) ___(i)___ nutrients are required in large quantity and called as ___(ii)___.
    (b) Kharif crops are cultivated from ___(iii)___ to ___(iv)___ .
    (c) Berseem is an important ___(v)___ crop.
     

    A) (i)-17, (ii)-Micronutrients, (iii)-June, (iv) - October

    B) (iii) - June, (iv) - October, (v)- Fodder

    C) (i) - 17, (ii) - Macronutrients, (v) - Field

    D) (iii) - November, (iv) - April, (v) - Rabi

    Correct Answer: B

    Solution :

    Kharif crops are those crops that are grown in rainy season from June to October, e.g., paddy, : soybean, maize and cotton. Fodder crops are those crops that are grown as food for the livestock, e.g. berseem, sorghum, etc. Out of the seventeen nutrient elements required by plants, nine are required in. larger amounts, these are called macronutrients e.g., carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium and sulphur.


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