Which waves indicate the most extensive shadow? Why?
A) P waves—because they cannot travel through the liquid outer core
B) P waves—because they cannot travel through the solid inner core
C) S waves—because they cannot travel through the liquid outer core
D) S waves—because they cannot travel through the solid inner core
C
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If an oil well is drilled and natural gas is discovered along with liquid oil, the natural gas is simply burned off if there is no nearby pipeline.
Answer the following statement true (T) or false (F)
Is the rate of Earth's rotation increasing or decreasing?
A. It is increasing. B. It is remaining relatively steady. C. It is decreasing. D. It is increasing and decreasing in cyclic fashion.
Stationary fronts
A) are usually cloudless. B) are the same as occluded fronts. C) occur when two cold fronts meet. D) occur inside a single air mass. E) are often accompanied by precipitation.
A desert surface characterized by exposed rock surfaces would be classified as a(n):
a. hammada b. reg c. erg d. bajada