Might be B: by combining China's collectives into self-sufficient People's Communes.
Answer:
Geomorphology, as a critical component of physical geography, is needed to understand natural landform changes and potential hazards for populations.
Explanation:
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Latitudes are always sleeping(horizontal), longitudes are always awake(standing)
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This question. Is making a question out of a sentence. Here is a graph of the global temps over the millennia.