Final answer:
The agricultural revolutions in the Americas and western Asia were significantly different: the Americas developed independently with staple crops and lacked many domesticated animals, while western Asia had a more extensive and integrated agricultural revolution with a diversity of domesticated animals and crops.
Step-by-step explanation:
Comparing the differences in the agricultural revolutions between the Americas and western Asia, we find significant contrasts. The Agricultural Revolution in the Americas happened independently, in regions developing their own agricultural traditions, such as the Andean region, Mesoamerica, and the upper areas of North and South America. These developments were quite separated from the technological and cultural developments in Eurasia due to the earlier submergence of Beringia and the resultant isolation. In contrast, the development of agriculture in western Asia, particularly in the Fertile Crescent, was more integrated with the developments in Eurasia.
Agriculture in the Americas lacked domesticated animals that were prominent in western Asia, such as cattle, horses, sheep, goats, pigs, and chickens. Instead, they developed staple crops like corn, potatoes, and cassava. Additionally, the social and political structures in the Americas were different, with trading networks in North America and powerful empires like the Maya, Aztecs, and Incas in Central and South America. In western Asia, agricultural societies emerged alongside the growth of early urban civilizations and were part of a broader interaction network with neighboring regions.
Therefore, the correct answer to the comparison is that the agricultural revolutions were significantly different in the regions: Western Asia had a more extensive agricultural revolution when considering the impact, integration with Eurasia, and the diversity of domesticated animals and crops. The answer is option C.