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Assuming the options found elsewhere, one of the achievements of pre-Columbian (i think you mean Mesoamerican, not "mess") cultures would show that they had intensive architecture, which they sustained through intensive agriculture.
Explanation:
Hoped this helped:)
Answer:
A because science is not to be a math subject
Answer:
intelligence and creativity
Answer:
Explanation:
D)The system is open, and the net external force is nonzero.