Which statement describes indoor air pollution? Select three options.

Smog is a common source of indoor air pollution.

Ultrafine particles are classified as an indoor air pollutant.

Indoor air pollution can worsen symptoms for people with asthma.

Chemicals from industrial power plants cause indoor air pollution.

Indoor air pollutants can pass through the body's natural defenses.

B, C, E

The are correct on edge2020

Answer: Ultrafine particles are classified as an indoor air pollutant.

Indoor air pollution can worsen symptoms for people with asthma.

Indoor air pollutants can pass through the body's natural defenses.

Explanation:

Mold, tobacco smoke, dust mites, cooking gases, gases produce due to heating are the examples of indoor pollutants. These are ultrafine particles which can harm the respiratory system of the body. These can worsen the symptoms of respiratory diseases and affect the breathing ability of people. Thus the patient of asthma will also suffer due to indoor pollution. The pollution due to microbes like mold and fine particles can affect the immune system as they can affect the inhibit the working efficiency of immune cells.