Multiple choice

Which of the following can be the reasons of soil acidification?

  1. Heavy rainfall
  2. Use of fertilizer
  3. Shifting cultivation

  1. 1 and 2 only

  2. 1 and 3 only

  3. 2 and 3 only

  4. 1, 2 and 3
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A Correct answer
Explanation

Increase of concentration of hydrogen ions in the soil is known as soil acidification. The main cause of soil acidification is inefficient use of nitrogen fertilizer. Heavy rainfall may also lead to soil acidification as the bases in soils are washed away. Shifting cultivation does not lead to soil acidification, although it leads to generating infertile soil. 

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