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

Question I was asked: Which fact about water is an example of a chemical property?

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

Question I was asked: The classification of some organisms has changed. Which new process is used to reclassify organisms?

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

Question I was asked:
Which human activity will help decrease air pollution?