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    Biology
    Grade-10
    Easy

    Question

    Plants absorb nitrogen in which of the following forms?

    1. Nitrates
    2. Ammonium
    3. Nitrites
    4. All of the above

    hintHint:

    Plants absorb nitrogen from the soil as both NH₄⁺ and NO₃⁻ ions, but because nitrification is so pervasive in agricultural soils, most of the nitrogen is taken up as nitrate. Nitrate moves freely toward plant roots as they absorb water.

    The correct answer is: All of the above

      • Plants absorb nitrogen from the soil in the form of nitrate, nitrite, and urea. In aerobic soils where nitrification can occur, nitrate is usually the predominant form of available nitrogen that is absorbed
      • Nitrification is so pervasive in agricultural soils, most of the nitrogen is taken up as nitrate.

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