Toxicity of Elements and Soil Pollution · NCERT Biology

Soil pollution mainly affects mineral nutrition of plants by:

  1. Increasing availability of all nutrients
  2. Altering nutrient balance and uptake
  3. Improving soil aeration
  4. Enhancing nitrogen fixation
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Correct answer: Altering nutrient balance and uptake

Soil pollution disturbs nutrient availability and absorption. Toxic substances interfere with root function and ion uptake.

Difficulty: Medium Question 6 of 20

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