Answer: Migration (B)
Explanation: It's not population growth because it means the increasing population of a place.
Not immigration because it means coming to live in another country permanently.
And lastly, not deportation because it means the removal of a foreigner for violating an immigration law
They exported Grain in the late 1900th century
B, because when Japan attacked China, China unified to fight a common enemy.
I think the correct answer from the choices listed above is option A. The event that have been an example of why the framers of the Constitution included the phrase "insure domestic tranquility" would be Shay's rebellion. <span> "Insure domestic tranquility"</span> <span> refers to the need to keep the peace and the assurance that people can conduct their lives and business without fear of social disorder, rebellions and riots.</span>
<span>Slave states <span>Year
</span></span><span>Missouri 1821 <span>Maine
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