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

Question I was asked: Lemon juice turns litmus paper red, is corrosive and tastes sour. Lemon juice is classified as

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

Question I was asked: Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?

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

Question I was asked:
If a scientist wants the medical community to revise old information and use new research findings in the treatment of a disease, it would be best to present the information