The waters of Okefenokee Swamp are dark brown due to tannic acid, which is also found in which drink?

The waters of Okefenokee Swamp are dark brown due to tannic acid, which is also found in which drink?

A Black tea
B Lemonade
C Hot chocolate

The waters of the Okefenokee Swamp are tea-colored as a result of the trees and plants that decay in them. American alligators are more brown than green because they bathe in these waters.

The correct answer is Black tea.