Relier Pairs ScienceVersion en ligne Science par Margine Cascayan 1 Layer where jets fly 2 Prevent ultraviolet rays from reaching the atmosphere 3 Lowest layer in the atmosphere 4 Higher layer in the atmosphere 5 Reflects radio waves Exosphere Ozone layer Ionosphere Stratosphere Troposphere 1 Prevent ultraviolet rays from reaching the atmosphere 2 Lowest layer in the atmosphere 3 Higher layer in the atmosphere 4 Reflects radio waves 5 Layer where jets fly Exosphere Ionosphere Troposphere Stratosphere Ozone layer