Please answer the following question: Fact 1: Earth orbiting the Sun causes seasons to change. Fact 2: More than any other season, summer is a time of quick-changing weather patterns. Given the two facts above, answer the question "Earth doing what causes quick-changing weather patterns?" with the following options: - orbiting the sun - Greenhouse gases - cycling the moon - global warming - soaking up rays - energy of moving objects - drifting in space - Movement
A:
orbiting the sun