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100

He cleared a pass through the Appalachian Mountains. 

How did Daniel Boone help encourage settlement of the West?

100

According to his correspondence with Thomas Jefferson, what resources did George Hunter hope to find in the Louisiana Territory?

What is minerals such as iron?

200

She acted as a guide and an interpreter. 

How did Sacagawea help Lewis and Clark?

200

What major geological feature did Lewis and Clark cross to end up in the United States did not yet own in 1805?

What is the Continental Divide?

300

William Dunbar and George Hunter, Thomas Freeman and Peter Curtis

Who explored the Red River and the Arkansas River?

300

Dunbar and Hunter studied the chemistry of which geographical feature?

What are the hot springs near the Ouachita River. 

400

Why did the Lewis and Clark expedition take the longest?

What is it was the only one to reach its destination and it had farther to travel than the other expeditions?

400

He had been told to gather information about plants and wildlife in the Louisiana Territory.

Why did Lewis bring all those supplies?

500

Acquisition of natural resources

What is the primary benefit of the Louisiana Purchase?

500

To educate people about the kinds of plants in the area he explored and to fulfill the president's instruction about keeping detailed records of what he saw.

Why did William Clark include drawings in his journal?

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