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

Question I was asked: Earth's rotation (turning on its axis) causes

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

Question I was asked: Why is the ozone content of the stratosphere important to living organisms?

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

Question I was asked:
Which of the following occurs during photosynthesis?