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- 1. Multiple Choice
This is dark in color because of the high organic matter. Often found in the O and A horizon.
Iron
Humus
Bedrock
Subsoil
- 2. Multiple Choice
Soil in order starting from the top is...
O, R, A, B, C
A, B, C, D, E
A, B, C, O, R
O, A, B, C, R
- 3. Multiple Choice
If there is too much sand in soil what happens?
Water runs through--the soil is too dry
It keeps too much water--the soil is too wet
It doesn't affect it
- 4. Multiple Choice
Why are living organisms good for the soil?
They break down organic material
They put waste into the soil
They create space and room within the soil by living in it
All of the above
None of the above
- 5. Multiple Choice
If there are many plants and animals living in soil it is less likely that it will erode.
True
False
- 6. Multiple Choice
Soil that is gray in color means...
High in iron
High in organic matter
Poor drainage
It doesn't mean anything
- 7. Multiple Choice
Soil that is red in color means...
High in iron
High in humus
Poor drainage
None of the above
- 8. Multiple Choice
The horizon that is high is organic material is also known as the ___ horizon.
O
A
B
C
R
- 9. Multiple Choice
The horizon that contains bedrock is also known as the ___ horizon.
O
A
B
C
R
- 10. Multiple Choice
The horizon that is known as topsoil is also known as the ___ horizon.
O
A
B
C
R
- 11. Multiple Choice
The horizon that is called parent material is also known as the ___ horizon.
O
A
B
C
R
- 12. Multiple Choice
The horizon that is known as subsoil is also known as the ___ horizon.
O
A
B
C
R
- 13. Multiple Choice
How will soil be affected if there is too much clay?
It will be too dry: water runs through
It will be too wet: water retains
It won't be affected
- 14. Multiple Choice
Soil develops faster if it's...
cold and dry
warm and dry
cold and high precipitation
warm and high precipitation
- 15. Multiple Choice
Erosion is when the wind or water create movement. Erosion occurs naturally and can be positive or negative. Which horizon would be most affected by erosion?
O
A
B
C
R
- 16. Multiple Choice
A vertical cross section in soil is known as...
A soil horizon
A soil profile
Humus
- 17. Multiple Choice
Each horizontal layer is called a...
soil profile
horizon
humus
- 18. Multiple Choice
Where do you find roots, moisture and living things?
Towards the top of a soil profile
Towards the bottom of a soil profile
- 19. Multiple Choice
It gets rockier as you go dig down in a soil profile
True
False
- 20. Multiple Choice
Roots usually extend to which horizon?
O
A
B
C
R
- 21. Multiple Choice
Soil and dirt are the same
True
False
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