The highest surface on this figure is a river terrace. This terrace
A. formed sometime in the past.
B. predates erosion down to the present level.
C. is older than the modern river channel.
D. All of these.
Answer: D
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Match the energy source with the correct description.?
A. ?solid fossil fuel formed from the remains of land plants B. ?can be refined into various fuels and other components with different boiling points C. ?a mixture of gases, of which 50-90% is methane D. ?liquid fuel produced from coal E. ?uranium-235 nuclei are split into light nuclei
At which sites would this stream profile most likely be located?
A. A and C B. C and D C. D and A D. B and D
In some places, Pleistocene glaciation depressed the Earth's crust as much as ________
A) 1.2 meters (3.9 feet) B) 12 meters (39 feet) C) 120 meters (393 feet) D) 1,200 meters (3,937 feet) E) 12,000 meters (39,370 feet)
Explain persistent vs. on-the-fly topology in GIS.
What will be an ideal response?