Answer the following questions. You will receive immediate feedback when you select your answer or when you click on the green check mark (). When you are finished, click the How Did I Do? button to see your score.

Match the statements on the left with the terms on the right.


  1. what ozone is made of


  2. effects of high levels of ozone on humans


  3. human activities that increase ozone levels in the lower atmosphere


  4. things that increase ozone levels in rural areas


  5. natural occurrence that can prevent the buildup of ozone pollution


  6. necessity of ozone to humans


  7. cause of the hole in the ozone layer


  8. importance of the ozone layer for the earth


  9. prevents the buildup of pollution


  10. prevents the destruction of the ozone layer


  1. damages sensitive tissues, like lungs
  2. limiting the use of fossil fuels
  3. not using products that contain harmful chemicals
  4. Ozone in the stratosphere is critical to our survival.
  5. Scientists believe it is chlorofluorocarbon gases.
  6. special form of oxygen
  7. The ozone layer protects the earth from the sun's harmful rays.
  8. trees and other vegetation and power plants
  9. using fossil fuels, burning wood, and other products
  10. winds