Which of the following is defined as combinations of soil particles that vary in size and shape? a. clay b. aggregates c. silt d. loam Please select the best answer from the choices provided
Where does the organic material in soil originate?a.physical weatheringb.chemical weatheringc.decomposing plant and animal matterd.the atmosphere
Animals contribute to soil formation through decomposition of organic material.
Which of the following factors does not affect soil formation?a.precipitationb.timec.erosiond.none of the above
Soil is not directly important to animal life.
Soil is a mixture of _______.a.solidsb.solids, liquids, and gasesc.solids and liquidsd.solids and gases
What causes soils and their horizons to differ?a.differences in climates where the soils are formedb.differences in plant and animal life in different locationsc.differences in the layout of the landd.all 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
Which of the following soil particle types is the largest?a.sandb.siltc.clayd.potassium
Which of the following areas would most likely have the deepest layer of topsoil?a.desertb.beachc.grasslandd.mountaintop
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