Answer:
OC. immigrants coming to America
Explanation:
The phrase that describes what the "push and pull" theory was about immigrants coming to America.
The massive land grab was significant because the question of extending slavery into newly acquired territories had turned into a leading political issue
Because I am not exactly sure what war you are talking about, I will answer the question as if it were World War II. The Attack on Pearl Harbor is the main reason the U.S. joined the war (WWII).
I hope this helps.
Answer:
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Explanation:igutdyutei576iyuhgcfdetryuhjbn
