WONDER #1489: What Is Air Made of?

Question 1 of 3

Which gas makes up most of the air around you?

  1. nitrogen
  2. oxygen
  3. water vapor
  4. argon

Question 2 of 3

Which element in air does your body need to survive?

  1. nitrogen
  2. oxygen
  3. water vapor
  4. argon

Question 3 of 3

Other than oxygen and nitrogen, all the other trace elements make up about what percentage of air?

  1. 50%
  2. 99%
  3. 1%
  4. 25%

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