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