The channel of a desert stream is usually covered with ________
A) sand and gravel
B) bedrock
C) pediments
D) salt
E) algae
Answer: A
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Critics of recycling are most likely to claim:
a. It isn't worth the effort. b. There is no solid-waste problem. c. Incineration is the safest and most efficient way to dispose of solid wastes. d. It doesn't make sense to recycle if it costs more than sending wastes to a landfill or an incinerator. e. There is abundant landfill space in all areas.
The largest source of oil for the United States is currently
A. Venezuela. B. Alaska. C. Canada. D. the Middle East.
The triatomic form of oxygen (O3) is known as ________
argon ozone chlorofluorocarbon molecular oxygen
If you wanted to locate hot spots on Earth, which of the following would NOT be good place to look?
A. clusters of volcanically active islands B. the volcanically active end of a linear island chain C. Hawaii and the Galapagos D. All of these would be good places.