The concentration of high-technology firms in Silicon Valley is primarily related to what factor?
A) The region was ideally located to attract and retain a highly educated workforce
B) The fame of the Los Alamos labs.
C) The Silicon Valley was protected by massive shore defenses after WWII.
D) The power grid for California was centered around the Silicon Valley.
A
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What is the basic premise of the Core-Periphery relationship?
A) As the world economy expanded, it developed a core of less developed countries and a periphery of dominant, more developed countries. B) As the world economy expanded, a cycle developed wherein countries (such as Great Britain) spent about a century as the dominant power in the world economy, then lost its power and joined the periphery of less dominant economic powers. C) As the world economy expanded, a cycle developed wherein countries (such as the United States) spent about a century as a peripheral player in the world economy, then gained power and became a dominant economic power at the core of the world economy. D) As the world economy expanded, it developed a core of dominant, developed countries and a periphery of dominated less developed countries. E) As the world economy expanded, it developed a core of capitalist countries and a periphery of communist countries.
Fire-dependent natural ecosystems include all but which of the following?
A. the Mediterranean-climate shrublands B. grasslands C. seasonal tropical forests D. deserts E. some temperate-climate forests
When did the British set about withdrawing from South Asia altogether?
A) after the Seven Years War B) after World War I C) after World War II D) during the Vietnam War E) none of the above
Potholes are especially common in areas with numerous freeze-thaw cycles.
a. true b. false