<h2>Answer:</h2>
<u>Ozone is produced by the </u><u>reaction of solar radiation with atmospheric oxygen</u>
<h2>Explanation:</h2>
Ozone is a special form of Oxygen which is present in the atmosphere and it protects us from dangerous ultraviolet radiations which comes from the sun. The chemical formula of ozone is O3. This gas is produced naturally in the stratosphere when some highly energetic solar radiation come from the sun and strikes molecules of oxygen present in the atmosphere and cause the two oxygen atoms to split apart in a process called photolysis.
A line segment on a graph would be any line that isn't continuous. It would have dots on the ends instead of arrows. Is that what you're asking?
Shinzo Abe: Japan
Chiang Kai-shek: China
Kim Jong Un: North Korea
Park Geun-hye: South Korea
Mao Zedong: Taiwan