What are some uses of magnetic reversals?
A. calculating rates of seafloor spreading
B. studying magnetic stripes on the seafloor
C. matching the patterns of reversals in a rock sequence to the magnetic timescale
D. All of these choices are correct.
Answer: D
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What evidence suggests that the river is widening its valley through lateral erosion?
The following questions are based on Map T-4, a portion of the “Voltaire, North Dakota” quadrangle (scale 1:24,000; contour interval 5 feet) and Figure 40-4, a stereogram of the same region showing the Souris River (48°06'23"N, 100°48'05"W). What will be an ideal response?
What are some of the most important secondary and tertiary industries in the Coastal South today?
What will be an ideal response?
____________________ are not warm fronts or cold fronts, but represent a narrow boundary where there is a steep horizontal change in moisture
Fill in the blank with correct word.
The dark, rusty brown coating of oxide minerals that covers the surface of rocks in desert is called:
a. desert dust b. ventifact c. desert faceted rock d. desert varnish