Answer:
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:
Answer: option B. "the country's per capita GDP has increased."
Explanation:
D. The European population nearly doubled, the Native American population dropped greatly, and millions of Africans were sent the Americas as slaves.