Passage VII
Radar observations of Saturn's moon Titan have revealed landforms that resemble longitudinal sand dunes found in some deserts on Earth. Such dunes are produced when sand-size solid particles are deposited in linear parallel piles (see Figure 1). Figure 2 shows the average dune spacing and average dune height for each of a number of areas of dunes on Titan and in 4 deserts on Earth (Deserts A-D). Figure 3 shows plots of the surface elevation (elevation above a horizontal reference plane) across a 25 km wide perpendicular cross section of dunes on Titan and in Desert A.
37. Assume that for the dunes represented in Figure 2, as average wind speed increases, average dune height increases. Did Desert A or Desert B more likely have the greater average wind speed?
Your Answer is
Correct Answer is A
Explanation
Looking at figure 2, it can be found that the average dune height of Desert A is higher than that of Desert B. According to the question stem, it can be seen that the average wind speed of Desert A is higher