This figure has rock units and geologic features that are assigned letters that are not in any particular order. From the geologic relations, what is the oldest unit or feature of those listed below?
A. lava flow (unit L)
B. fault (feature F)
C. the canyon (feature N)
D. dike (unit D)
E. old river channels (feature R)
Answer: B
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a. demographic equilibrium b. demographic sufficiency c. voluntary simplicity d. affluenza e. affluent regression
Mongolia borders ________ to the north and ________ to the south
A) Russia; China B) China; Japan C) North Korea; South Korea D) Russia; India
Over half of all U.S. MSW consists of ________
A) paper, food waste, and yard waste B) glass, rubber, and wood C) toxic waste D) plastics, metals, and glass E) plastics and metals
On this map of South America, which features are NOT on a plate boundary?
A. B and C B. A and B C. C and D D. D and E E. All of the features are on a plate boundary.