Multiple choice

Which of the following substances is obtained from soil by a plant?

  1. Nitrogen

  2. Oxygen

  3. Carbon dioxide

  4. None of these
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A Correct answer
Explanation

Plants absorb nitrogen from the soil in the form of nitrates or nitrites through their roots. While oxygen and carbon dioxide are primarily obtained from the air through leaves during respiration and photosynthesis, nitrogen is a crucial mineral nutrient sourced from the ground. Other minerals like phosphorus and potassium are also obtained from the soil.

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