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- 1. Multiple Choice
What is the first step in soil formation?
Erosion
Weathering
Deposition
Decomposition
- 2. Multiple Choice
What type of environment does weathering happen the quickest?
Dry and hot
Dry and cold
Wet and hot
Wet and cold
- 3. Multiple Choice
Which of the following contributes to most of the organic remains found in humus?
Plants
Animals
Rocks
Minerals
- 4. Multiple Choice
What are the three different particles found in soil?
Clay, sand, silt
Dirt, air, marble
Gravel, water, marble
Dirt, air, water
- 5. Multiple Choice
Which of the following is the smallest particle you can find in soil?
Sand
Clay
Silt
Loam
- 6. Multiple Choice
What is the biggest particle you can find in soil?
Sand
Silt
Clay
Loam
- 7. Multiple Choice
What type of soil is an equal mixture of sand, silt, and clay?
Sandy soil
Loam
Clay soil
- 8. Multiple Choice
What are some of the main soil decomposers?
Fungi, bacteria, worms
Foxes, deer, voles
Bacteria, snakes, groundhogs
Rats, squirrels, rabbits
- 9. Multiple Choice
Which soil horizon is usually called "topsoil" and contains primarily humus.
Horizon O
Horizon A
Horizon B
Horizon C
- 10. Multiple Choice
Scientists classify soil into types based on characteristics like what?
Rocks, weather, food sources
Food webs, climate, plants
Climate, plants, soil composition
Climate, food sources, predators
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