possible answers
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 continued to use Neolithic technology and made a few improvements largely unrelated to agriculture. River valley civilizations made discoveries with tools and metallurgy that previous civilizations were unable to produce. 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.
1 answer
The best answer that shows how river valley civilizations built upon existing Neolithic technology is:
"River valley civilizations added new tools in addition to stone tools from the Neolithic period and expanded on preexisting knowledge of metallurgy."
This response indicates not only the continuation of existing Neolithic technologies but also highlights the innovation and development that occurred in river valley civilizations, particularly in metallurgy and tool-making.
