What geographic feature limited the eastward expansion of the Inca Empire? Amazon River Andes Mountains Pacific Ocean Atlantic Ocean

The Andes Mountains served as a significant barrier to the eastward expansion of the Inca Empire. These towering peaks, with their high altitudes and rugged terrain, created a formidable challenge for any large-scale movement of people or resources. The Incas were adept at navigating the mountains, but their empire remained primarily concentrated in the regions where the terrain was more hospitable. In contrast, the dense Amazon Rainforest lay beyond the eastern slopes of the Andes, making it difficult for the Incas to establish a foothold there. This lush, tropical environment comes with its own set of challenges, including thick vegetation and a plethora of insects, which further deterred expansion into the eastern territories.