Which one of the following toxic gases in the environment lowers the resistance to pneumonia in huma...........

Environment and Ecology (Easy) Environment

Which one of the following toxic gases in the environment lowers the resistance to pneumonia in human beings?

Carbon dioxide

Nitrogen dioxide

Hydrogen chloride

Sulphur dioxide

- Option 1: Carbon dioxide

- Naturally present and exhaled by humans.

- Toxic only at extremely high concentrations, but does not typically lower pneumonia resistance.

- Option 2: Nitrogen dioxide ??

- A major air pollutant from vehicles and industry.

- Damages lung tissue, impairs immune response, and lowers resistance to respiratory infections, including pneumonia.

- Option 3: Hydrogen chloride

- Mainly causes irritation of eyes, nose, and throat.

- Does not specifically lower resistance to pneumonia.

- Option 4: Sulphur dioxide

- An air pollutant affecting lung function and causing irritation, but less specifically involved in pneumonia resistance.

Correct Answer:

Option 2: Nitrogen dioxide

Submit Error