Answer the following question: You are presented with the quiz "Fires cannot burn where?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "afire requires oxygen to burn" and "in the vacuum of space, there's no oxygen to burn". So, what's the best answer to the question?

Pick from: 1). dormant state 2). one celled organisms 3). in the atmosphere 4). in a pit 5). in the woods 6). In the winter 7). the Great Barrier Reef 8). vacuum of space
Answer:
8).