Gullies:
a. form where two first-order streams meet.
b. have perennial tributaries.
c. lie on the interfluve.
d. are smaller than rills.
e. have ephemeral flow.
E
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Five layers of rock are cut by two faults. Both faults cut through all five layers of rock. Fault A breaks through to the surface, whereas fault B does not. Which of the following statements about faults A and B is most accurate?
a. Faults A and B are about the same age, and both are younger than the five layers of rock. b. Fault A is younger than fault B, and both are younger than the five layers of rock. c. Faults A and B are about the same age, and both are older than the five layers of rock. d. Fault A is younger than fault B, and both are older than the five layers of rock.
The scanning probe microscope
A. can scan small things from a large distance away, such as the surface of the Moon. B. characterizes the surface atoms of a material. C. uses very large mirrors and lenses to enhance an image. D. vaporizes a substance, then analyzes and manipulates the components.
According to your text, today's world economy began in the 1900s, along with the rise of the automobile industry
Indicate whether the statement is true or false
Which of the following technologies helped shale gas become an important resource?
A. hydraulic fracturing B. directional drilling C. Both of these choices are correct. D. Neither of these choices are correct.