Mount St. Helens
A. had a revival of dome growth in 2004
B. is part of the Cascade Range
C. last erupted violently in 1980
D. all of the preceding
Answer: D
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The world's most extensive regions of arid climate are ____
a. centered on the Tropics of Cancer and Capricorn b. centered on the equator c. between 30o and 40o North and South latitude d. centered on the poles
Tsunamis
A. travel very slowly and dissipate a few kilometers from their point of origin. B. are sometimes called "tidal waves" but are actually sea waves generated by seismic events. C. cross the open ocean as huge breakers, sweeping ships aside. D. All of the choices are correct.
What does the value of Kw say about the extent to which water molecule react with themselves?
A) Because the value of Kw is so small, the extent to which water ionizes is quite large. B) Because the value of Kw is so small, the extent to which water ionizes is quite small. C) Water molecules react with themselves at a constant rate, never increasing or decreasing. D) When an acid is added to water, the value of Kw will decrease.
Aristotle's view of natural laws is best understood by
A. reasoning. B. patterns. C. mathematics. D. experiment.