Multiple choice general knowledge Which of the following is not obtained from the bark of a tree? Quinine Tannin Cinnamon Bhang Reveal answer Fill a bubble to check yourself D Correct answer Explanation Quinine (from cinchona bark), Tannin (from various tree barks), and Cinnamon (from cinnamon tree bark) are all obtained from tree bark. Bhang is obtained from the leaves and flowers of the Cannabis plant, not from any tree bark.