Fact 1: Afirecracker converts chemical energy into sound. Fact 2: Fireworks are illegal, including firecrackers. Given the two facts above, what do fireworks convert chemical energy into?
Options:
(1). fire.
(2). heat.
(3). energy.
(4). Light.
(5). solids.
(6). bacteria.
(7). cold.
(8). sound.
(8).