question: Two students notice that the constellation Scorpio is directly overhead as they enter a building. When they leave the building several hours later, Scorpio is no longer directly overhead. Which of these statements explains why Scorpio appears to be in a different location?
choices.text: Earth rotates on its axis. Earth revolves around the sun. The stars are moving through space. The gravity of the moon attracts the stars.
choices.label: A B C D