Earth Science: Ozone Layer

Test Quiz

Questions on this quiz are based on information from
Earth Science: Ozone Layer.

1. What element makes up ozone?
a. Nitrogen
b. Carbon
c. Oxygen
d. Hydrogen
e. Neon

2. Where is the ozone layer located?
a. In the top layer of the ocean where fish live
b. High in the Earth's atmosphere
c. Around the equator
d. Deep in the Earth's core
e. It surrounds the Sun

3. Why is the ozone layer important?
a. It helps to provide food for ocean bacteria
b. It prevents hurricanes from forming
c. It slows down global warming
d. It absorbs ultraviolet rays from the Sun that can cause cancer
e. It's actually not that important

4. What type of compounds can damage the Earth's ozone layer?
a. Chlorofluorocarbons
b. Carbon dioxides
c. Pesticides
d. Fluorides
e. Herbicides

5. Where do CFCs come from?
a. Spray cans
b. Fire extinguishers
c. Air conditioners
d. Manufacturing foams
e. All of the above

6. True or False: CFCs were banned in developing countries by the year 2000.

7. Where is the 'hole' in the ozone layer located?
a. Over the United States
b. Over Europe
c. Over Antarctica
d. Around the equator
e. Over Africa and China

8. What should you do to protect yourself from the harmful rays of the sun?
a. Wear sunglasses
b. Wear sunscreen when outside
c. Stay in the shade or keep your skin covered when outside
d. All of the above
e. None of the Above

9. Where was Freon used prior to the ban on CFCs?
a. To make foam
b. In nuclear power stations
c. In television screens
d. To kill insects on farms
e. In air conditioners

10. True or False: Sunlight damages the ozone layer by breaking up O3 atoms into O2 atoms.

About this quiz: All the questions on this quiz are based on information that can be found on the Earth Science: Ozone Layer page at

This quiz is copyright property of Ducksters and TSI. All rights reserved. Please visit