Which of the following gases causes the depletion of the ozone layer in the upper atmosphere?

Explain tropospheric pollution caused by oxides of nitrogen.

How are aldehydes produced in the atmosphere?

Which of the following is not an air pollutant?

Which components are present in the stratosphere?

Assertion : Suspended particulate matter $(SPM)$ is an important pollutant released by diesel vehicles.
Reason : Catalytic converters greatly reduce pollution caused by automobiles.