Online World Ozone Day Awareness Quiz 2025 with Certificate

Organizer : NSS unit of Delonix Society’s Baramati College of Pharmacy, Barhanpur (Patas Road), Tal. Baramati, Dist. Pune.

On the occasion of World Ozone Day, our National Service Scheme (NSS) Unit is organizing an Online World Ozone Day Awareness Quiz 2025 to spread awareness about protecting the ozone layer and safeguarding the environment.

About the Quiz

• Theme: Global Cooperation to Protect Life on Earth.
• This quiz consists of 20 multiple-choice questions .
• Each question carries 1 mark.
• No negative marking.
• Time limit: 20 minutes.
• Date: 16th September 2025
• Mode: Online
• Eligibility: Open to all students
• E-Certificates: Provided to all participants (on successful submission)
• Passing Criteria: Minimum 50% score required
• Students are encouraged to participate actively, enhance their knowledge, and make this event a success.

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100% Correct Answers World Ozone Day Awareness Quiz 2025 Here

Questions for quiz

1. When is World Ozone Day celebrated?
   *
   1 point
   A) 5 June
   B) 16 September
   C) 22 April
   D) 1 December
2. What is the chemical formula of ozone?
   *
   1 point
   A) O
   B) O₂
   C) O₃
   D) CO₂
3. Which layer of the atmosphere contains the ozone layer?
   *
   1 point
   A) Troposphere
   B) Stratosphere
   C) Mesosphere
   D) Thermosphere
4. Which harmful radiation is absorbed by the ozone layer?
   *
   1 point
   A) Gamma rays
   B) Ultraviolet rays
   C) Infrared rays
   D) X-rays
5. Which gas mainly causes ozone layer depletion?
   *
   1 point
   A) Oxygen
   B) Chlorofluorocarbons (CFCs)
   C) Nitrogen
   D) Hydrogen
6. Which international agreement was signed to protect the ozone layer?
   *
   1 point
   A) Kyoto Protocol
   B) Paris Agreement
   C) Montreal Protocol
   D) Rio Summit
7. In which year was the Montreal Protocol signed?
   *
   1 point
   A) 1985
   B) 1987
   C) 1990
   D) 1995
8. What color is the ozone hole shown in satellite images?
   *
   1 point
   A) Blue/Purple
   B) Red
   C) Green
   D) Yellow
9. Which continent is most affected by the ozone hole?
   *
   1 point
   A) Asia
   B) Africa
   C) Antarctica
   D) Europe
10. What is the main benefit of the ozone layer?
    *
    1 point
    A) Provides oxygen
    B) Filters UV radiation
    C) Produces rainfall
    D) Controls wind speed
11. Which Indian city hosted the 2017 World Ozone Day celebrations?
    *
    1 point
    A) New Delhi
    B) Mumbai
    C) Chennai
    D) Hyderabad
12. Which Nobel Prize-winning scientists discovered the link between CFCs and ozone depletion?
    *
    1 point
    A) Crutzen, Molina, Rowland
    B) Watson & Crick
    C) Marie Curie
    D) Einstein
13. Which natural process also produces ozone near the Earth’s surface (bad ozone)?
    *
    1 point
    A) Photosynthesis
    B) Photochemical smog reaction
    C) Combustion of fuels
    D) Respiration
14. Which UN body oversees the Montreal Protocol?
    *
    1 point
    A) UNDP
    B) UNEP
    C) UNESCO
    D) WHO
15. Which layer lies directly above the stratosphere?
    *
    1 point
    A) Troposphere
    B) Mesosphere
    C) Thermosphere
    D) Exosphere
16. At what altitude is the ozone layer found in the atmosphere?
    *
    1 point
    A) 5–10 km
    B) 10–20 km
    C) 20–30 km
    D) 50–60 km
17. Which unit is used to measure ozone concentration?
    *
    1 point
    A) PPM (parts per million)
    B) Dobson Unit (DU)
    C) Joule
    D) Mole
18. Which greenhouse gas is also a contributor to ozone depletion in the stratosphere?
    *
    1 point
    A) CO₂
    B) Methane (CH₄)
    C) Nitrous oxide (N₂O)
    D) Ozone (O₃)
19. What percentage of the Sun’s UV radiation is absorbed by the ozone layer?
    *
    1 point
    A) 10%
    B) 50%
    C) 90%
    D) 100%
20. Which year was designated by the United Nations as the International Year of the Ozone Layer?
    *
    1 point
    A) 1985
    B) 1994
    C) 2000
    D) 2010