Question

Smog is a kind of air pollution, originally named for the mixture of smoke and fog in the air.
A. True
B. False

Answer 1

Hint: Classic smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and sulfur dioxide. It can irritate our airways, increasing our risk of serious heart and lung diseases.

Complete Answer:
- Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust pollen and mold spores may be suspended as particles.
- Ozone gas is the main reason for air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.
- Smog is a type of air pollution. Smog is a mixture of fog and smoke, and results due to combustion of large quantities of coal in an urban area, this smog consists of ash components from smoke, sulphur dioxide and other particles.
- It is usually highly toxic to humans and can cause severe sickness, shortened life or death.

Thus, the correct option is A i.e True.

Note: Smog can cause many health issues like- chronic bronchitis, asthma, emphysema and other respiratory issues and also eye itching and decreased resistance to cool environment and lung diseases. The ozone gas in smog also stops plant development and can result in widely increased harmfulness of crops and forests.