Which of the following statements is true with regard to air?
A) Cold air can hold more water vapor than warm air.
B) Humid air is denser than dry air.
C) Warm air is less dense than cold air.
D) Water vapor in air can occupy up to 30% of air's volume.
C
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Worldwide, a rise in the female education correlates most strongly with
A) education abroad. B) life expectancy. C) obesity. D) agricultural density. E) a decline in total fertility rates.
The "shared set of meanings" of culture generally refers to
A) religious practices. B) family values. C) historical understandings. D) ideas about gender roles. E) religious practices, family values, historical understandings, and ideas about gender roles.
Which of the following amines serve as a building block for the amine bases of DNA and RNA?
A) purine B) pyridine C) both a and b D) neither a nor
What best explains why volcanic mudflows are so dangerous to humans?
A. they move down stream valleys where people tend to live B. the high temperature of the mud C. they are more fluid and move more rapidly than a normal flood D. they trigger other types of landslides E. all of the answers listed here