WONDER #1476: What Is Smog?

Question 1 of 3

Smog is a word that’s a combination of what two other words?

1. smell and fog
2. smoke and fog
3. smut and bog
4. smoke and dog

Question 2 of 3

Smog can be especially troubling for people with what respiratory illness?

1. diabetes
2. heart disease
3. asthma
4. liver failure

Question 3 of 3

Which of the following is NOT a source of fossil fuel emissions that can contribute to smog?

1. automobiles
2. factories
3. power plants
4. solar panels

Check your answers online at https://www.wonderopolis.org/wonder/what-is-smog.