Multiple choice

What is the top layer of fertile soil?

  1. litter

  2. top soil

  3. bedrock

  4. subsoil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The topsoil, or A horizon, is the uppermost layer of mineral soil that contains high amounts of organic matter, making it the most fertile layer for plant growth. Litter is organic debris on top, while subsoil and bedrock lie deeper.

Keep practicing — related questions