Which statements about earth’s atmosphere are correct? check all that apply. the most abundant gas in the atmosphere is oxygen. carbon dioxide in the atmosphere is important for plants. the troposphere shields earth from chunks of rock from space. the stratosphere is located 50 to 80 kilometers from earth’s surface. the troposphere gets colder the higher you go. the ozone in the stratosphere protects us from ultraviolet radiation. the amount of water vapor in the air is nearly constant.