Multiple choice

The use of gypsum is recommended mainly in soils which are

  1. alkaline

  2. saline

  3. water-logged

  4. acidic

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gypsum (calcium sulfate) is used to reclaim alkaline soils. The calcium ions in gypsum replace sodium ions on the soil particles, which helps improve soil structure and reduce alkalinity.