How does the author convey the importance of the pioneers' journey for the country? from the newsela article "Time Machine (1845): The Oregon Trail"

Prairie schooner, 19th-century covered wagon popularly used by emigrants traveling to the American West. In particular, it was the vehicle of choice on the Oregon Trail. The name prairie schooner was derived from the wagon’s white canvas cover, or bonnet, which gave it the appearance, from a distance, of the sailing ship known as a schooner.

Explanation:

b. great plains

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australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.