Question

which of the following best shows how river - valley civilizations built upon existing neolithic technology and made a few improvements? (1 point) river valley civilizations continued to use neolithic technology and made a few improvements largely unrelated to agriculture. river valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the neolithic period. river valley civilizations made discoveries with tools and metallurgy that previous civilizations were unable to produce. river valley civilizations added new tools in addition to stone tools from the neolithic period and expanded on preexisting knowledge of metallurgy.

Explanation:

River - valley civilizations built on existing Neolithic technology, adding new tools and expanding knowledge in metallurgy. They continued to use Neolithic technology and made improvements, and were able to produce with tools and metallurgy discoveries. They were not largely unrelated to agriculture, nor were they limited to only Neolithic - period items, nor unable to produce.

Answer:

River valley civilizations added new tools in addition to stone tools from the Neolithic period and expanded on preexisting knowledge of metallurgy.