Multiple choice

What should be added to soil, if it is alkaline in nature?

  1. Lime

  2. Calcium Carbonate

  3. Peat

  4. Water

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

Alkaline soil has high pH and needs acidification. Peat is acidic and organic, making it ideal for lowering soil pH. Lime (calcium oxide) and calcium carbonate would make soil more alkaline - they're used to treat acidic soil, not alkaline soil. Water is neutral and won't change pH.