Which of the following would be evidence that a volcano has NOT been active for a long period of time?
A. well-developed soils on volcanic rocks
B. relatively unweathered lava flows
C. a layer of ash blanketing hillslopes
Answer: A
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What is a cause of atmospheric circulation?
a. The temperature of Earth's surface b. Conduction currents c. The amount of reflection of solar radiation d. The Coriolis Effect
Which of the following processes is NOT considered physical weathering?
A. prying by plant roots B. thermal expansion C. frost wedging D. near-surface fracturing E. oxidation
This figure shows three blocks in water. Which of these materials is the least dense?
A. block 1 B. block 2 C. block 3 D. the water 4
Central Asia and western North America experience dryness because of ________
A) the polar frontal zone B) a lack of moist air masses C) cold temperatures D) the rapid uplift of air E) the Intertropical Convergence