Multiple choice

Which of the following statement is true for top soil?

  1. It is harder and more compact layer.

  2. It contains less living organism.

  3. It contains humus.

  4. It is less fertile
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Topsoil is the uppermost soil layer (A-horizon) richest in organic matter and humus from decomposed plant/animal material. It is biologically active, contains most living organisms, is most fertile, and is softer and less compact than subsoil layers below.

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