Millennials attend a watch party for the last presidential debate between Donald Trump and Hillary Clinton at Capitol Lounge on Pennsylvania Avenue, SE, October 19, 2016. Hereâs Why Millennials May Not Come Out to Vote in 2016.
See more related lessons here. The Ozone Layer This is simply a layer in the stratosphere containing a relatively high concentration of ozone. The earth's atmosphere is divided into several layers, and each layer plays an important role. The first region extending about 10km upwards from the earth's surface is called the troposphere.
The ozone layer is located in the stratosphere, a region of the atmosphere that is about 10 to 50 kilometers above the Earth. The stratosphere consists of approximately 90 percent ozone. Ozone has the chemical formula O3.