Pollutants Quiz

What are primary pollutants?

• Only gases released from vehicles

• Pollutants that are harmless to the environment

• Pollutants formed from chemical reactions in the atmosphere

• Substances emitted directly from identifiable sources

Which of the following is a sulfur compound?

• Carbon dioxide (CO2)

• Hydrogen fluoride (HF)

• Sulfur dioxide (SO2)

• Nitrogen dioxide (NO2)

What type of pollutants are formed by the combination of primary pollutants?

• Natural pollutants

• Secondary pollutants

• Tertiary pollutants

• Primary pollutants

Which compound is formed from a photochemical reaction involving nitrogen oxides?

• Carbon monoxide (CO)

• Ozone (O3)

• Hydrochloric acid (HCl)

• Hydrogen sulfide (H2S)

What is smog primarily composed of?

• Carbon and sulfur compounds

• Ozone and nitrogen

• Fog and smoke with chemical fumes

• Water vapor and dust

Which of the following is NOT a nitrogen compound mentioned?

• Nitrogen dioxide (NO2)

• Ammonia (NH3)

• Sulfur trioxide (SO3)

• Nitric oxide (NO)

What is a characteristic of fine particles suspended in the air?

• They include metals, carbon, and pollen

• They are larger than 100 micrometers

• They are harmless to human health

• They are only found in rural areas

What effect does smog have on health?

• It helps in reducing pollution

• It improves respiratory health

• It causes smarting eyes and lung damage

• It has no effect on health

Which of the following is a halogen compound?

• Ammonia (NH3)

• Carbon monoxide (CO)

• Hydrogen fluoride (HF)

• Sulfur dioxide (SO2)

What is the diameter of fine particles that are more abundant in the air?

• Less than 50 micrometers

• Less than 100 micrometers

• More than 100 micrometers

• Exactly 100 micrometers