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Andrei [34K]
3 years ago
9

What geographic feature served as the biggest catalyst for the westward expansion

Geography
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
The Appalachian Mountains
Kobotan [32]3 years ago
3 0

Answer:

Explanation:

I'm not trying to answer, i'm trying to get a why like why is it the biggest catalyst.

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