Final answer:
In the United States, only Hawaii and southern Florida have tropical and sub-tropical grasslands, savannas, and shrublands climates.
Step-by-step explanation:
In the United States, only Hawaii and southern Florida have tropical and sub-tropical grasslands, savannas, and shrublands climates. Vegetation is mainly tall grasses and scattered trees, like those in the savannas, a huge swampland that covers some 4,000 square miles.