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The richest layer of soil, includes nutrients and organic matter
topsoil
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The second layer of soil
subsoil
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The third layer of soil
parent material
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The fourth layer of soil
bedrock
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When wind or water washes away soil
erosion
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When wind, water, or chemicals break rocks into smaller particles
weathering
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In soil sand, silt, and clay are examples of what
inorganic
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The specific ingredients of soil (sand, silt, clay) are referred to as its
composition
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A complete and accourate desciption in science
scientific observation
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This is best to be used to provide missing nutrients
fertilizer
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What is used to describe texture?
grainy, silky, sticky
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What is used to describe consistence?
loose, friable, firm
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Largest particle of weathered rock
sand
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Medium particle of weathered rock
silt
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Smallest particle of weathered rock
clay
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Living things that fall to the ground, decomposing animal matter, waste
organic matter
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Found in topsoil, examples include, potassium, phosphous, nitrogen
nutrients
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What is needed by all plants?
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