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

Question I was asked: A fox gave birth to an offspring that had a better sense of hearing than most foxes. How could this small change most likely result in descendants that are different from the original fox?


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

Question I was asked: Which layer of Earth is the source of lava that erupts from volcanoes?


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

Question I was asked:
How do coal and the sun compare as sources of energy?