________ tend to increase the explosive potential of a magma body beneath a volcano
A) High viscosity and dissolved gas B) Low viscosity and low dissolved gas content
C) High viscosity and low dissolved gas content D) Low silica content and low viscosity
A
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Pretend you are on a morning time mission on the surface of Venus. When looking out the spacepod window, you are likely to see
A. the Sun rising in the West. B. fierce windstorms everywhere you look. C. thick, smog-like cloudcover. D. the Sun rising in the East.
Which of the following foods requires the most water to produce?
A) A cup of coffee B) A glass of milk C) A tomato D) A hamburger
Earthquakes along the San Andreas fault zone, for example, are repetitive—they reoccur in roughly the same regions over and over again—separated by decades or centuries because ________
A) plate boundaries move at regular rates so the interactions across plate boundaries are predictable and regular B) stress continues to build up all the time and when it is great enough to overcome friction there will be an earthquake and then the process will start over again C) there are areas that are weak and always break when small amounts of energy are applied to them D) faults are always moving or creeping so an earthquake will occur whenever two sides meet that have the right properties for an earthquake
Shortly after the devastating 2011 Tohoku-Oki Earthquake, the Chikyu drillship began an expedition to study which of the following?
A) Earth's climate change patterns B) Earthquake-generated heat from friction C) The mechanism that causes tsunamis D) The microbiology of the deep-ocean floor E) The properties of the deep crust