What are some characteristics of the land that make the western United States geographically diverse?

It is also the most geographically diverse, incorporating geographic regions such as the temperate rainforests of the Northwest, the highest mountain ranges (including the Rocky Mountains, the Sierra Nevada, and the Cascade Range), numerous glaciers, and the western portions of the Great Plains.

Explanation:

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.