1. Fugitive Slave Act, 2. Gold mining, 7. Population growth led to sanitation are the only ones I know, sorry I couldn't help you more<span>
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Manchuria is the answer because the Japanese invaded on 1931
The United States has been a leading member of the United Nations although there have been disputes along the way.
Answer:
I'm pretty sure the answer is C
Explanation:
sorry if i'm wrong