Final answer:
Native American culture groups consisted of many distinct tribes throughout the United States, with a significant presence in the Eastern Woodlands and the Southwest, contrary to the falsehoods suggesting sparsity and geographic limitation.
Step-by-step explanation:
Native American culture groups consisted of many distinct tribes, which is true. Each tribe had its own diverse languages, characteristics, and cultures. The notion that most of present-day United States was uninhabited by Native Americans is false. Before European contact, there were hundreds of societies scattered across the continent. Responding to the statement that very few tribes lived in the Eastern Woodlands culture area, this is also false, as the Eastern Woodland peoples were thriving with numerous tribes within this region. Lastly, stating that the Southwest culture group was limited to present-day Mexico is false. The Southwest culture area extended into what is now the southwestern United States, where multiple Indigenous groups, such as the Puebloans, had established themselves.