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.