Which is not a way in which us boundaries changed between 1800 and 1821? a. john quincy adams arranged to purchase florida from spain. b. new england states lost territory as people moved west. c. the nation added new states in the midwest and south. d. the nation doubled in size with the louisiana purchase.

The correct answer is B) New England states lost territory as people moved west.

What was not a way in which US boundaries changed between 1800 and 1821 was that "New England states lost territory as people moved west."

That never happened

What truly happened that doubled the size of the United States territory was the Lousiana Purchase in 1803. President Thomas Jefferson ordered the purchase of the territory that belonged to France. President Jefferson sent James Madison to Paris to accelerate negotiations and in April 1803, France accepted the prize of $11,250,000 to close the de deal.

i believe it was the shinto