How was the environment transformed by westward expansion?

Westward expansion significantly transformed the environment through extensive land use changes, deforestation, and the disruption of natural ecosystems. The introduction of agriculture and ranching led to the cultivation of vast tracts of land, often at the expense of native habitats. Additionally, the construction of railroads and cities contributed to pollution and habitat fragmentation. These changes not only altered the landscape but also had lasting impacts on wildlife and indigenous communities.