The atmosphere is a layer of gases that surround Earth. Which of the following statements describes what would most likely happen on Earth if the atmosphere did not exist?
a. The temperature on Earth would become warmer and change the lakes and rivers.
b. More radiation would reach Earth's surface and harm living things.
c. The water on Earth would change, and it would rain all the time.
d. The composition of the soil would change, and the movement of soil would speed up.