The O horizon of soils consists of ________
A) material leached from the top layers of soils
B) materials deposited by erosion
C) mostly organic material
D) bedrock
E) weathered parent material
C
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In core economies, which of the following dominate the food production process?
A) consumers B) transnational corporations C) government officials D) agricultural workers
Which particles of sediment are most likely to be transported as suspended load?
A) Small, low density particles B) Pebbles of average density C) Sand and gravel of relatively high density D) Dissolved ions in solution E) All of these are correct.
Botswana is in ________ Africa
A) north B) southern C) east D) west
Which of the following terms do geologists use to describe the process whereby rocks are mechanically broken down into smaller pieces?
A. Pulverization weathering B. Disintegration weathering C. Disaggregation weathering D. Physical weathering E. Chemical weathering