When tilted or folded sedimentary rocks are overlain by more flat-lying strata, it is known as:
a) A disconformity
b) An angular unconformity
c) A nonconformity
d) A conformity
e) None of the above
Answer: b) An angular unconformity
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Urban primacy occurs when
A) a country has a city three to four times larger than any other city in the country. B) the number of people residing in cities has exceeded that of those residing in rural areas. C) people in cities receive lower tax rates. D) a country implements a policy to reduce urban sprawl. E) a country's population is greater than 80 percent urban.
Which of the following processes is exemplified by the green flash?
A. reflection of light by the Earth's atmosphere B. diffraction of light by the Earth's atmosphere C. refraction of light by the Earth's atmosphere D. absorption of light by the Earth's atmosphere
What forms at divergent plate boundaries?
a)new continental lithosphere b) new oceanic lithosphere
Plate movement that results from the addition of new oceanic crust along mid-ocean ridges is known as
A) divergent upwelling. B) transverse faulting. C) seafloor magnification. D) ridge push E) slab pull.