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Social Studies, 20.04.2021 19:00 julialombardo53

Which reason best explains how the use of stone tools, such as those shown in Source 2, by early humans led to the development of civilization? A) They were used as the basis of new communication systems.
B) They were used to meet the basic needs of more people.
C) They allowed travelers to explore new areas for settlement.
D) They helped farmers grow a wider variety of crops.

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