Volcanic domes grow from lava being injected into the interior of mounds of cooled lava and from the breaking out and moving down the flanks of
A. runny lava flows.
B. basaltic lava flows.
C. viscous lava flows.
Answer: C
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What caused Russia to move backwards in the demographic transition?
a. death rates increased and birth rates increased b. birth rates decreased and death rates decreased c. death rates rose and birth rates decreased d. death rates decreased and birth rates increased e. birth rates decreased and immigration decreased
Which of the following circulation patterns is characteristic of an anticyclone in the Northern Hemisphere?
A. dry air flowing toward Siberian high B. dry air flowing from Siberian high C. moist air flowing toward Tibetan low D. dry air flowing from the Tibetan low
Which of the following is common in most calderas?
A. thick sequences of volcanic ash B. a large circular depression with steep walls C. rounded mountains that are volcanic domes D. All of these choices are correct.
The low-viscosity, fluid lava of hot-spot volcanoes in ocean basin settings is typically
A. mafic. B. ultramafic. C. intermediate. D. felsic.