5. Land
Soil Profiles — Quiz
Test your understanding of soil profiles with 5 practice questions.
Practice Questions
Question 1
What is a soil profile?
Question 2
Which soil horizon is usually richest in humus and organic matter?
Question 3
What does the $A$ horizon mainly contain?
Question 4
Why is the $B$ horizon often called the subsoil?
Question 5
Which process removes dissolved minerals from upper soil layers and carries them downward?