Which of the following factors does not affect soil formation?a.precipitationb.timec.erosiond.none of the above
Which of the following will be most influenced by the amount of organic material?a.soil colorb.soil texturec.soil structured.number of horizons
The rate of soil formation cannot be increased.
Which of the following areas would most likely have the deepest layer of topsoil?a.desertb.beachc.grasslandd.mountaintop
Animals contribute to soil formation through decomposition of organic material.
Soil is not directly important to animal life.
Soil horizons are defined by physical features.
Where does the organic material in soil originate?a.physical weatheringb.chemical weatheringc.decomposing plant and animal matterd.the atmosphere
Which of the following soil particle types is the largest?a.sandb.siltc.clayd.potassium
Soil is a mixture of _______.a.solidsb.solids, liquids, and gasesc.solids and liquidsd.solids and gases
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