You are presented with the quiz "What does salt do to ice?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "adding salt to a solid decreases the freezing point of that solid" and "salt is used as a deicer because it lowers the freezing point of water".   So, what's the best answer to the question?
Available options:
1). reduce.
2). Freezes it.
3). watershred.
4). Makes more ice.
5). Turns it into carbon.
6). Melts it.
7). evaporation.
8). protect them.
Answer:
6).