Ask questions corresponding to the underlined elements.
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At that time, Louisiana was
'a huge territory West of the Mississippi.'
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US president Thomas Jefferson sent 'Lewis and Clark' on an expedition to the West.
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Lewis and Clark studied 'the Indian tribes, the fauna and flora and the landscapes of the West.'
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Sacagawea, an Indian woman, helped them find 'horses and food.'
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Lewis and Clark drew maps of the land 'in their journals.' ​