This is the environmental recycling process that supplies essential substances such as carbon, nitrogen, and other nutrients to the biosphere
A) photosynthesis
B) evapotranspiration
C) photochemical cycles
D) biochemical cycles
E) ecosystems
Answer: D
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Why is a phenol more acidic than a regular alcohol?
A) Phenols have the ability to spread the negative charge that forms. B) Phenols have the ability to readily accept the positive charge of the proton. C) The negative charge is very concentrated on the oxygen ring of the phenol. D) The phenol has more negative charge and therefore is more stable. E) Phenols are not more acidic than a regular alcohol.
The hurricanes that wrack the Caribbean originate in the Pacific Ocean
Indicate whether the statement is true or false
The greatest reduction in solar radiation receipt in polluted cities will occur:
A) during the spring in low-latitude cities. B) during the summer in middle-latitude cities. C) during the winter in high-latitude cities. D) equally in cities at every latitude.
A knowledge of current world population density is of relatively little value in itself, primarily because the world population
a. is uniformly distributed. b. is unevenly distributed. c. changes its density each day. d. is declining in density. e. is predictable to very precise standards.