Final answer:
The area west of the Mississippi River is larger, arider, and less densely populated compared to the lush, well-watered, and more densely settled land to the east. This difference is reflected in land use patterns and population density indicators.
Step-by-step explanation:
When comparing the land west of the Mississippi River to the land east of it, we are evaluating two vastly different regions. The Mississippi River serves as a significant geographical divider in the United States. To the east, there are the Eastern Woodlands which include a variety of plants and animals, and they have been historically richer in water resources and more densely populated.
In contrast, the west, particularly beyond the 100th meridian, has historically been known for its arid landscapes and less dense population, as evidenced by the distinctive difference in lights seen from space. The vast Great Plains are significantly larger than the eastern region and were once referred to as the "great American desert" reflecting early misconceptions about their value.
Additionally, agricultural patterns differ, with wheat predominantly harvested in the western and central areas whereas the east favors crops like corn. Understanding these differences in population density, land use, and ecological characteristics helps to gain a deeper insight into the large expanse of the American West compared to the East.