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Arêtes [a-reets] and drumlins are formed by what a...
Single Choice
Arêtes [a-reets] and drumlins are formed by what agent of weathering?
A.
Stream flow
B.
Winds
C.
Glaciers
D.
Precipitation
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[单选题] An example of a source region for continental arctic air is:
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[问答题] What group of plants, characterized by the presence of bundle-sheath and mesophyll cells, is adapted...
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