Compared to an incandescent lamp, an LED lamp gives more light output for
A. less power.
B. greater resistance.
C. the same power.
D. none of the above
Answer: A
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Your kid brother predicts that another earthquake will occur in the San Francisco area. Is his prediction likely to come true?
A. Yes, because earthquakes always occur in clusters. B. Yes, because San Francisco hasn't had a big earthquake since 1906. C. Yes, because there is a hot spot under San Francisco. D. Yes, because a tectonic plate boundary runs through the San Francisco area.
What prior scientific view was supported by Neptunist theory?
A) Earth originated as a vast blob of material uniformly distributed in water. B) Earth originated as a remnant of a star explosion. C) Earth originated as solids dissolved in a ball of water. D) Earth began as a ball of hot gases that cooled into water and solids.
Burial of rocks increases the confining pressure so that deeply buried rocks are more likely to ________ than shallow rocks
A) shear B) fracture C) deform D) fold
Which of the following hydrologic cycle reservoirs is the smallest?
A) Atmospheric water vapor B) Groundwater and soil moisture C) Ice caps, glaciers, and snow D) Streams and lakes E) World ocean