Which statement describes indoor air pollution? Check all that apply.

1 Smog is a common source of indoor air pollution.

2 Ultrafine particles are classified as an indoor air pollutant.

3 Indoor air pollution can worsen symptoms for people with asthma.

4 Chemicals from industrial power plants cause indoor air pollution.

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

Indoor Air Pollution is the pollution inside the house or a closed premises. Here, the indoor air is contaminated by smoke, chemicals, smells or particles.

The correct statements that describe indoor air pollution are-

2. Ultra fine particles are classified as an indoor air pollutant.

3. Indoor air pollution can worsen symptoms for people with asthma.

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

Ultra fine particles are classified as an indoor pollutant (2)

indoor air pollution can worsen symptoms for people with asthma (3)

Indoor air pollutants can pass through the body's natural defenses (5)

Explanation:

Indoor pollution is a kind of pollution that tends to occur inside a building which could be residential or commercial in nature and this pollution affects the systems (health conditions) of the occupants of such building negatively not all sources of pollution can be found in indoor pollution examples of indoor pollution sources are Ultra fine particles. chemicals from industrial power plants do not cause indoor air pollution because they are not kept indoors where humans will come in-direct contact with them.