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

Question I was asked: Which instrument should a student use to best examine bacteria?

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

Question I was asked: What is the most reasonable explanation for why a toy car rolls farther on a wood floor than on a thick carpet?

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

Question I was asked:
Which body system is most affected by a disease that causes the bones to become weak and brittle?