Final answer:
The Corps of Discovery faced challenges such as extreme weather conditions, scarcity of food and water, and difficult terrains during their expedition.
Step-by-step explanation:
The Corps of Discovery, led by Meriwether Lewis and William Clark, faced several physical and geographical challenges during their expedition. Some of these challenges included:
- Spending winter walking in sub-zero weather, facing extreme cold and harsh conditions.
- Crossing the desert with limited food and water, enduring scarcity and dehydration.
- Carrying their supplies over difficult terrain, such as mountains and rivers, making their journey physically demanding.
These challenges were overcome by relying on their survival skills, hunting and fishing for food, and strategizing their route to navigate through various terrains.
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