Question

Which of the following air samples are toxic? Select all that apply.

a) Oxygen (O2)
b) Nitrogen (N2)
c) Carbon dioxide (CO2)
d) Carbon monoxide (CO)

Answer 1

The toxic air samples are carbon monoxide (CO) and carbon dioxide (CO2)

Step-by-step explanation:

Toxic air samples refer to those that contain substances that are harmful to human health. From the given options, the following air samples are toxic:

• Carbon monoxide (CO): It is a colorless, odorless gas emitted from combustion processes, and can cause harmful health effects.
• Carbon dioxide (CO2): Although not as toxic as carbon monoxide, high concentrations of CO2 can lead to respiratory problems and asphyxiation in enclosed spaces.

The other options, oxygen (O2) and nitrogen (N2), are both naturally occurring gases in the atmosphere and are not toxic.