Pick your answer from:
(1). direct damage to the lungs.
(2). gas bubbles to burst.
(3). Something to move.
(4). It expands.
(5). The bending of a ray of light.
(6). chemical reaction.
(7). enormous damage to homes.
(8). matter vibrating.

Fact 1: Heating a liquid can be used to identify that liquid 's boiling point. Fact 2: Lots of gas bubbles burst over the boiling lakes' surface. Given the two facts above, heating a liquid can cause what?
Answer:
(2).