1 True statements about O3 include which of the following?
I. It is a pollutant in the troposphere.
II. It filters out very little UV-A radiation in the stratosphere
III. Most of it is formed in the stratosphere by reaction between carbon dioxide and free oxygen atoms

A. I only
B. III only
C. I and II only
D. I,II, and III



Answer :

The statements that is true about ozone (O₃) is as follows:

It is a pollutant in the troposphere

It filters out very little UV-A radiation in the stratosphere

The correct answer is option C.

What is ozone?

Ozone is an allotrope of oxygen with symbol O₃ having three atoms in the molecule instead of the usual two.

The ozone layer refers to a region of the stratosphere containing a relatively high concentration of ozone, which absorbs most solar ultraviolet radiation.

Although majority of ozone is found in the stratosphere, the little amount found in the troposphere is a gaseous pollutant.

Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen.

Therefore, the statements that is true about ozone (O₃) is as follows:

It is a pollutant in the troposphere

It filters out very little UV-A radiation in the stratosphere

Learn more about ozone at:

#SPJ1