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10 Cards in this Set
- Front
- Back
topsoil
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weathered rock and organic material
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humus
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deccayed plant and animal remains
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subsoil
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like topsoil- lacking organic material
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contour plowing
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plow along a slope
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compost
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plant material in piles and allowed to decompose
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salinization
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accumulation of salts in soil
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pest
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any organism that you don't want cause and can caule damage
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pesticides
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kills pests
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insecticides
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kills insects
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pesticide resistance
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pests evolve to make pesticides less effective
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