Which of the following best shows how river valley civilizations built upon existing Neolithic technology?
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 built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period.
To determine which of the given options best shows how river valley civilizations built upon existing Neolithic technology, we need to analyze each option and evaluate how it relates to the advancements made in these civilizations.
1) "River valley civilizations continued to use Neolithic technology and made a few improvements largely unrelated to agriculture."
This answer choice suggests that river valley civilizations made minor enhancements to Neolithic technology, but these developments were not primarily focused on agriculture. This doesn't demonstrate a significant building upon Neolithic technology since it implies only marginal improvements.
2) "River valley civilizations made discoveries with tools and metallurgy that previous civilizations were unable to produce."
This answer choice implies that river valley civilizations made significant advancements in tools and metallurgy that previous civilizations struggled to achieve. This option depicts a clear progression and improvement in technology, suggesting a building upon existing Neolithic technology.
3) "River valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period."
This option suggests that river valley civilizations expanded upon the utilization of three specific technologies (the wheel, plow, and bronze weaponry) that were already present to some extent in the Neolithic era. It demonstrates a direct link between the innovations of the Neolithic period and their further development in river valley civilizations.
Considering the options, the third choice, "River valley civilizations built upon the early wheel, plow, and bronze weaponry that were used to a limited extent in the Neolithic period," best shows how river valley civilizations built upon existing Neolithic technology.