Question

ased on your knowledge of history, identify three impacts of the Lewis and Clark Expedition on American history.


recorded plants, animals, and Native tribes encountered


produced an accurate route to the Pacific Ocean


created a British claim on territory within the Louisiana Purchase


opened up a new territory for fur and lumber trade


discouraged westward expansion into the new territories


determined how the territories would be split into states

Answer 1

Correct choices: recorded plants, animals, and Native tribes encountered; produced an accurate route to the Pacific Ocean; opened up a new territory for fur and lumber trade.

Brief explanations:
- They systematically documented hundreds of plants and animals and described many Native nations, producing valuable scientific and ethnographic records.
- Their maps and journals established a reliable overland route to the Pacific and greatly improved geographic knowledge of the continent (they did not, however, find a single easy water route across the continent).
- Their reports and maps stimulated commercial interest — especially the fur trade — and later settlement and resource exploitation (including lumber) in the Upper Louisiana and Pacific Northwest.

The other statements are incorrect: the expedition did not create a British claim, did not discourage westward expansion (it encouraged it), and did not determine how territories would be divided into states.