Choose from: (A). sweets; (B). ice; (C). water; (D). energy; (E). heat; (F). food; (G). sugar; (H). paper;
Given those answer options, answer the question: Fact 1: Burning wood is used to produce heat. Fact 2: Birch trees are deciduous and the wood burns hot and fast, as if soaked with oil or kerosene. Given the two facts above, birch trees are wood that are used to produce what?
A:
(E).