Answer:
First answer is work and second is slave labor
Explanation:
Lewis and Clark was a group of men in the military, known as the Corps of Discovery and civilians. Led by their leader Meriwether Lewis and Lieutenant William Clark to explore the land obtained by the United States in 1803. Known as the Louisiana Purchase.
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Social studies are the study of the origins, development, and organization of societies and cultures. Answering purpose questions in social studies means to research and interpreting subject matter relates directly to the organization and development of human society. In the United States education system, social studies is the integrated study of multiple fields of social science and the humanities, including history, geography, and political science.