31. Which of the following comparisons of the relative ground elevations at the 2 sites directly north of the epicenter to those at the 2 sites directly south of the epicenter over the period from January 1970 to January 1980 is best supported by Figure 1?
Your Answer is
Correct Answer is A
Explanation
Look at the text on the line and surface of figure 1, Sites A & B are in the north, and Sites C & D are in the south. When the abscissa is 1970-1980, the line segment of Sites A & B (north) is rising, and the line segment of Sites C & D (south) is falling