Final answer:
The assertion about Nlets regions in the United States is false, whereas the claim that the Southeastern U.S. was a center for plant domestication is true. Additionally, it's false that all tribes in the Iroquois Confederacy maintained neutrality during the Revolutionary War, and U.S. voting rates are lower than some industrialized nations, not higher.
Step-by-step explanation:
The statement that there are eight Nlets regions throughout the United States is false. Nlets, the International Justice and Public Safety Network, does not have a set number of regions in the U.S. as it is a computer-based message switching system that links state, local, and federal law enforcement and justice agencies for the exchange of critical information.
Additionally, the Southeastern region of the United States was indeed one of the world's independent centers for plant domestication, making the statement true. The Iroquois Confederacy, however, did not maintain neutrality during the Revolutionary War; some tribes within the Confederacy chose sides, so the statement is false.
Voting rates in the United States are not higher than those in most democratic industrialized nations like Sweden and South Korea, hence that statement is false. Finally, in the context of U.S. expansion, it was believed by some that spreading the boundaries of the United States was equivalent to spreading freedom.