1. What is the primary component of the ozone layer?
a) Nitrogen
b) Oxygen
c) Carbon dioxide
d) Methane
2. What is the main source of ozone depletion?
a) Natural processes
b) Human activities, such as the release of chlorine and bromine compounds
c) Solar radiation
d) Volcanic eruptions
3. What is the name of the hole in the ozone layer over Antarctica?
a) Antarctic Ozone Hole
b) Arctic Ozone Hole
c) Tropical Ozone Hole
d) Equatorial Ozone Hole
4. At what altitude is the majority of the ozone layer located?
a) Near the Earth's surface
b) At the top of the troposphere
c) In the stratosphere
d) In the mesosphere
5. What is the chemical formula for ozone?
a) O2
b) CO2
c) N2
d) O3
6. Which of the following is not a consequence of ozone depletion?
a) Increased ultraviolet radiation reaching the Earth's surface
b) Decreased air pollution
c) Reduced crop yields
d) Increased skin cancer rates
7. What is the name of the treaty signed in 1987 to phase out ozone depleting substances?
a) The Clean Air Act
b) The Montreal Protocol
c) The Paris Agreement
d) The Kyoto Protocol
8. Which of the following is not an ozone depleting substance?
a) Chlorofluorocarbons (CFCs)
b) Hydrochlorofluorocarbons (HCFCs)
c) Hydrofluorocarbons (HFCs)
d) Carbon dioxide (CO2)
9. How does the ozone layer protect life on Earth?
a) By absorbing ultraviolet radiation
b) By releasing oxygen
c) By reflecting visible light
d) By trapping heat
10. What is the current status of the ozone layer?
a) It is still depleting at a rapid rate
b) It is recovering slowly but steadily
c) It has fully recovered and is no longer a concern
d) It is stable and not changing.
Answers:
1-d
2-b
3-a
4-c
5-d
6-b
7-b
8-d
9-a
10-b