Which of the following is not a way in which volcanic domes are commonly destroyed?
A) collapse into emptied magma chambers below
B) collapse of steep flanks into block and ash flows
C) internally derived explosions from built-up gas pressure
A) collapse into emptied magma chambers below
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The period of the second hand on a clock is
A. 60 s. B. 1/60 s. C. 3600 s. D. 12 h. E. 1 s.
What physical conditions are necessary for the formation and stability of methane hydrates? What will be an ideal response?
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.
What is a hot spot relative to a mantle plume? What is often found there? What will be an ideal response?