The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place.The Greek root tropos means "mixing." and is appropriate for Earth's troposphere because ozone and oxygen mix together in the troposphere. Correct answer: D The troposphere is protected from the hard ultraviolet radiation of the Sun by the higher layers of the atmosphere, namely by the stratospheric ozone layer. Because of this protection, many molecules are more stable in the troposphere then elsewhere in the atmosphere. This protection makes life possible on Earth.
