In the soil, which of the separates are associated with significant chemical activity?
A) Sand
B) Silt
C) Clay
D) Aluminum
E) Radium
Answer: C
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A large step toward the elimination of poverty and the reduction of resource consumption could be made possible if there were cooperation among wealthier nations to reduce the amount of
A) wasted food and water. B) aid given to developing nations. C) redundant economic regulation. D) taxes paid by wealthier people.
Which of the following soils would probably have the lowest permeability?
A) Loosely cemented sandy soils B) Clay-rich soil in an uninhabited area C) Clay-rich soil being used as cattle pasture D) Loam
Describe a microecosystem. How do plankton species interact in these microecosystems? What will be an ideal response?
What is the most populous country on earth?
A) China B) Egypt C) Japan D) Pakistan E) Turkey