'(<a href="http://www.j-archive.com/media/2009-04-20_DJ_30.jpg" target="_blank">Kelly of the Clue Crew indicates a cross-section of the atmosphere on the monitor.</a>)  Making life on Earth possible, 90% of the world's ozone is found in this layer of the atmosphere'
the stratosphere
THE OZONE LAYER: Making life on Earth possible, 90% of the worlds ozone is found in this layer of the atmosphere
Making life on Earth possible, 90% of the world's ozone is found in this layer of the atmosphere
Making life on Earth possible, 90% of the world's ozone is found in this layer of the atmosphere
THE OZONE LAYER
the stratosphere
THE OZONE LAYER