Answer:
Savannahs do not exist in the United States because they are mostly common in Tropical and Subtropical Climates.
Step-by-step explanation:
Savannah is a name given to a type of vegetation cover usually consisting of grasses and sparse trees. The topography is generally flat with tropical climate, presenting two well defined seasons, one rainy and one dry. Savannas occur mainly in the intertropical zone of the planet, so it receives a huge amount of sunlight.