The correct answer is congress hope this helps and plz give me brainlist thanks
The Columbian Exchange was the widespread transfer of plants, animals, culture, human populations, technology, and ideas
The value of enslaved African American’s increased during and after the revolutionary war as they fought in the war.
They were part of the reason that America won the revolutionary war - they left their masters to risk their lives for a country that looked down upon them originally.
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Answer:
Polk accomplished this through the annexation of Texas in 1845, the negotiation of the Oregon Treaty with Great Britain in 1846, and the conclusion of the Mexican-American War in 1848, which ended with the signing and ratification of the Treaty of Guadalupe-Hidalgo in 1848.
The United States Constitution does not specifically address the secession of states and the issue was a topic of debate from after the American Revolutionary War and until the Civil War, when the Supreme Court ruled, in Texas v. White, that states cannot unilaterally secede, except through revolution or through the expressed consent of the other States.