I agree with MineMan "All layers of the atmosphere contain some ozone. The Ozone Layer is contained in the bottom of the stratosphere (this area is also called the tropopause)." I hope I helped at least a little bit.:)
All layers of the atmosphere contain some ozone. The Ozone Layer is contained in the bottom of the stratosphere<span> (this area is also called the </span>tropopause<span>).</span>