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- 1. Multiple Choice
The breaking down of dead organisms & organic waste.
decomposition
decomposers
erosion
weathering
- 2. Multiple Choice
The long term average weather conditions that occur in a particular region.
decomposition
climate
topography
weathering
- 3. Multiple Choice
The moving of sediment from one location to another.
decomposition
climate
erosion
weathering
- 4. Multiple Choice
The breaking down of rocks into sediments.
decomposition
decomposers
erosion
weathering
- 5. Multiple Choice
The top layer of soil that is best for growing plants.
A horizon
B horizon
C horizon
bedrock
- 6. Multiple Choice
The second layer of soil that contains a large amount of clay.
A horizon
B horizon
C horizon
bedrock
- 7. Multiple Choice
The layer of weathered rock below other horizons.
A horizon
B horizon
C horizon
bedrock
- 8. Multiple Choice
Solid rock that is not suitable for growing any plants.
A horizon
B horizon
C horizon
bedrock
- 9. Multiple Choice
Also known as subsoil.
A horizon
B horizon
C horizon
loam
- 10. Multiple Choice
The largest rock particles that make up soil.
sand
silt
clay
humus
- 11. Multiple Choice
The smallest rock particles that make up soil. They don't allow much water to get through.
sand
silt
clay
loam
- 12. Multiple Choice
Soil that has specific ratios of sand, silt, clay and humus that make it suitable for growing plants.
loam
subsoil
clay
humus
- 13. Multiple Choice
A cross section of soil layers that displays all soil horizons.
horizon
topography
subsoil
soil profile
- 14. Multiple Choice
Layers of soil formed from the movement of products of weathering.
horizon
topography
subsoil
soil profile
- 15. Multiple Choice
The organisms that live in a region.
decomposers
decomposition
pores
humus
- 16. Multiple Choice
Decayed organic matter found in the A horizon.
loam
humus
pores
soil profile
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