Question

Supersonic jets cause pollution by thinning of
a. O$_3$ layer
b. SO$_2$ layer
c. O$_2$ layer
d. None of the above

Answer 1

Hint: Ozone acts as the protective layer of the environment and just blocks all the coming harmful UV rays and protects all of us. SO$_2$ can have some serious issues on humans like they can irritate the skin and the mucous membrane of the eyes.

Complete answer:
The correct answer to this question is the first option that is (a) O$_3$ layer. Most of the naturally occurring ozone occurs in the stratosphere. Almost about 90 percent of natural ozone occurs in the stratosphere. The ozone which is present in the stratosphere is very helpful as this protects the humans from the harmful rays and removes all the incoming UV rays and almost 70 percent of incoming UV rays from the equator and almost ninety percent of the rays from the poles.
All the big aircraft produce carbon dioxide, water, CO Etc. Most of the commercial flights are confined to the troposphere. Most of the high-level supersonic aircraft produce harmful pollutants in the stratosphere.
This leads to the thinning of the ozone layer. The first option is correct. The second option is the SO$_2$ layer which is not the correct option. The third and fourth option is also not true hence the correct option of this question is (a).
When ozone depletion occurs it mainly affects all the population because ozone basically acts as the protective layer of the environment and just blocks all the coming harmful UV rays and protects all of us. But due to the thinning of this layer, many harmful Ultraviolet rays can cross this layer and can cause its harmful effects on humankind.

Note: Supersonic jets were discontinued because; they burn more fuel than the ordinary plane burns today. These supersonic jets cause more pollution than the others and release some of the gases which result in the thinning of the ozone layer. As the ozone layer protects everyone by blocking the incoming UV rays. Hence they are not used now. And much more fuel-efficient, as well as less pollution-causing jets, are used nowadays.