“The Atmosphere” Layers of the Atmosphere Troposphere Layer closest to the Earth. Where all weather occurs The higher you go in the Troposphere the colder it gets. The only layer of the atmosphere where life is possible. Extends 5-10 miles up from the Earth’s surface. Second layer of the atmosphere. Stratosphere Extends from 10-30 miles above the Earth’s surface. Temperatures remain fairly constant. Very calm.....NO WEATHER! Special form of oxygenOZONE, which protects us from harmful UV rays. Planes fly here, birds do Ionosphere Charged particles, called IONS, are found in this layer. Radio waves are sent from Earth and reflected back by this layer with satellites. It is very cold (-171F). The Atmosphere