1
Q
What are the components of soil
A
Minerals
Bacteria and organic materials
Air
Moisture
2
Q
Name the 2 types of soil
A
- wet dry climate soils
2. dry climate soils
3
Q
Name the sections of soil
A
Horizon a
Horizon b
Horizon c
4
Q
What is horizon a
A
Topsoil
Rich in organic materials
Dark and black In colour
5
Q
What is horizon b
A
Subsoil
Lighter in colour
6
Q
What is horizon c
A
Parent material
Made up of bedrock
This layer is the least weathered
7
Q
Explain the process of leaching
A
Downward movement of water
-removed nutrients that plants need
-in wet climates
8
Q
Explain the process of calcification
A
Water in the topsoil evaporates
Is the upward movement of water
Rich in minerals
In dry climates
