Yellowstone National Park is underlain by an ancient volcanic caldera and current thermal activity and uplift there may signal future eruption potential.
Answer the following statement true (T) or false (F)
True
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In the aerial imagery (Map T-20b), notice that the dry gorge around the half-circle-shaped hill looks like a ridge surrounding a depression. Why does it appear this way?
The question is based on color Maps T-20a and T-20b (in the back of the Lab Manual) and Figure 32-3, a black-and-white stereogram, showing the entrenched meanders of the Green River near Canyonlands National Park, Utah. A larger portion of this region is shown in color Map T-7 in the back of the Lab Manual. What will be an ideal response?
When El Niño occurs, a mass of warm Pacific surface water that is usually pushed westward by winds,
A. becomes much warmer than usual, strengthening winds B. surges northward, toward Japan. C. sinks and cools substantially. D. surges eastward toward South America.
Which of the following is accurate about bottled water?
A) It is often harvested from an area that needs water and is sold elsewhere. B) It requires less energy than providing water from a local aquifer or stream. C) It should not be used for emergencies but is a practical solution for augmenting drinking water on a large scale. D) Michigan has approved commercial production in all areas of the state.
Which numbered location in this figure would be the wave base?
A) 1
B) 2
C) 3
D) 1 and 2
E) 2 and 3