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10 questions
What is the first step in soil formation?
Erosion
Weathering
Deposition
Decomposition
What type of environment does weathering happen the quickest?
Dry and hot
Dry and cold
Wet and hot
Wet and cold
Which of the following contributes to most of the organic remains found in humus?
Plants
Animals
Rocks
Minerals
What are the three different particles found in soil?
Clay, sand, silt
Dirt, air, marble
Gravel, water, marble
Dirt, air, water
Which of the following is the smallest particle you can find in soil?
Sand
Clay
Silt
Loam
What is the biggest particle you can find in soil?
Sand
Silt
Clay
Loam
What type of soil is an equal mixture of sand, silt, and clay?
Sandy soil
Loam
Clay soil
What are some of the main soil decomposers?
Fungi, bacteria, worms
Foxes, deer, voles
Bacteria, snakes, groundhogs
Rats, squirrels, rabbits
Which soil horizon is usually called "topsoil" and contains primarily humus.
Horizon O
Horizon A
Horizon B
Horizon C
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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