Which of the following statements is not true?
A. On worldwide average, the largest earthquakes, with Richter magnitudes over 8, occur only once every few years.
B. There are many more small earthquakes than large ones and the small ones thus account for most of the seismic energy released by earthquakes each year.
C. There is no predefined upper limit to the Richter scale.
D. While great earthquakes are rare, there may be hundreds of thousands of small earthquakes each year.
Answer: B
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The special geologic terms used to represent the direction of a horizontal line on an inclined surface (like in a fault) is
A) dip. B) joint. C) hanging. D) horst.
________ ________ ________ is a more meaningful measure of income than GDP
Fill in the blank(s) with correct word
A primary environmental cost is pollution.
Answer the following statement true (T) or false (F)
The next advance in Doppler radar technology is the polarimetric radar that transmits ____
a. a horizontal radar pulse b. a vertical radar pulse c. both a horizontal and a vertical radar pulse d. light beams e. radar pulses specifically in the polar regions