Geologists have an excellent understanding of plate movements since before Pangaea came together.
a. true
b. false
b. false
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Upon entering the body, are drugs gradually oxidized or reduced?
A. Drugs are not oxidized or reduced. They are simply metabolized. B. The drugs are broken down, or reduced to smaller products during the metabolic process. C. The body's mechanisms for oxidizing foods act on drugs causing them to be oxidized as well. D. Some drugs are oxidized and some are reduced, depending on the type of drug ingested.
Most of the petroleum found in the Persian Gulf area formed at a ____________________ continental
margin where the remains of ____________________ were buried and converted to petroleum. Fill in the blank(s) with the appropriate word(s).
Dung beetles feeding on the waste of cattle grazing on hay in a field represent
A) a detritus-feeding decomposer feeding on the wastes of a consumer eating a producer. B) a producer feeding on the wastes of a producer eating a consumer. C) a producer feeding on the wastes of a consumer eating a producer. D) a consumer feeding on the wastes of a decomposer eating a producer.
The Boserup thesis argues that:
A. population increases necessitate increased inputs of labor and technology. B. distortions of market control may also be introduced to favor certain crops or commodities through subsidies. C. the uses to which parcels were put was a function of the differing "rent" values placed on seemingly identical lands. D. expanded food production made possible through the Green Revolution has helped alleviate some of the shortages and famines.