Final answer:
The truthfulness of the public-sector union membership statement by region in the U.S. cannot be determined without specific data, but it's known that overall union membership in the U.S. is lower compared to other high-income countries.
Step-by-step explanation:
The statement that public-sector union membership is much greater in the Northeast, North, and West than in the South and Midwest may not have a straightforward answer of true or false without specific data to support the claim. However, examining union trends in the United States, there are variations in union density by region, which are influenced by different legal environments and cultural attitudes toward unions. It is known that union membership in the United States, in general, is lower than in many other high-income countries. This could suggest regional disparities as well, but without concrete data provided for the specific question about the Northeast, North, and West versus the South and Midwest, an accurate answer cannot be given.
In terms of other statements, it is false that voting rates are higher in the United States than in most democratic industrialized countries, including Sweden and South Korea. Additionally, it is true that the region of the present-day Southeastern United States was likely one of the world's independent centers for plant domestication.
Focusing on federal spending, several statements can be assessed: Federal spending has grown substantially in recent decades (true), the majority of the federal government's revenue is collected through personal income taxes (true), and foreign aid is not a large portion of federal spending in comparison to other budget items (false).