How is ozone formation in the trophosphere different from stratosphere?

Question

How is ozone formation in the trophosphere different from ozone formation in the stratosphere? How is the ozone layer broken down in the stratosphere?

Answer 1

The majority of tropospheric ozone formation occurs when nitrogen oxides (NOx), carbon monoxide (CO) and volatile organic compounds (VOCs), such as xylene, react in the atmosphere in the presence of sunlight.
Ozone in the Earth's stratosphere is created by ultraviolet light striking oxygen molecules (O2), splitting them into individual oxygen atoms (atomic oxygen); the atomic oxygen then combines with unbroken O2 to create ozone, O3. The ozone molecule is also unstable (although, in the stratosphere, long-lived) and when ultraviolet light hits ozone it splits into a molecule of O2 and an atom of atomic oxygen, a continuing process called the ozone-oxygen cycle.

Answer 2

Ozone is O3 .
NO2 is not ozone ,it is a fertilizer .