I just took a test in school today. What question was I asked?

Question I was asked: Which of the following is a characteristic of all chemical changes?

I just took a test in school today. What question was I asked?

Question I was asked: Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will most likely remain the same?

I just took a test in school today. What question was I asked?

Question I was asked:
Which of these is most likely to be spread when two people drink from the same water bottle?