Which of the following best describes how metamorphic rocks form?
A. Crystallization of magma
B. Increased pressure and temperature
C. Precipitation of minerals
D. Lithification of sediment
E. Weathering and erosion
Answer: B
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What is a shadow zone?
a. A zone that is unable to be penetrated by sound waves due to the density of seawater. b. A zone that is unable to be penetrated by light waves due to deep depths. c. A zone created in front of ships and submarines that creates a converging blind spot for sound waves. d. A zone where the divergence of sound waves creates a region that has little sound energy penetration
What is the pattern of the three-stage sequence by which firms have grown in the U.S.?
A) vertical integration (1890s-1919), then horizontal integration (1920s-1940s), followed by diversification (since 1950s). B) diversification (1890s-1919), then horizontal integration (1920s-1940s), followed by vertical integration (since 1950s). C) diversification (1890s-1919), then vertical integration (1920s-1940s), followed by horizontal integration (since 1950s). D) horizontal integration (1890s-1919), then vertical integration (1920s-1940s), followed by diversification (since 1950s). E) vertical integration (1890s-1919), then diversification (1920s-1940s), followed by horizontal integration (since 1950s).
Which of the following best describes Shiprock, a famous volcanic feature in New Mexico?
A) an extinct, massive, rhyolitic shield volcano B) the eroded remains of a volcanic pipe and radiating dikes C) an extinct, highly symmetrical, composite volcanic cone D) a very recently active, basaltic cinder cone
If a stream carries water only during and immediately after a rain, it is classified as ________
A) ephemeral B) perennial C) exotic D) intermittent E) dendritic