Question

How is ozone formed?

Answer 1

Answer:

The Ozone is produced naturally when solar radiation collide with oxygen molecules $O_{2}$.

The solar radiation is high energy, as a result of the collision, oxygen molecules are separated in atoms, this process is known as Photolysis.

After the separation process, oxygen atoms are freed and continuously colliding one another, so here they form $O_{3}$ molecules.

The major part of the Ozone in the atmosphere is formed over the equatorial zone, because there is the most intense solar energy radiation.

Answer 2

When energetic UV rays dissociates molecules of oxygen into seperate atoms. But when they collide into each other it forms OZONE.