International ozone layer day quiz

Description: International ozone layer day quiz, 16 september, #ozonelayer #ozone layer #ozone #layer
Number of Questions: 10
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Tags: science
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Montreal Protocol is popularly considered the most successful UN environmental treaty. How many countries signed it?

  1. 179

  2. 197

  3. 719

  4. 917

Correct Option: B

The 2020 World Ozone Day theme and tagline is

  1. Ozone for Life- 35 years of Ozone Layer Protection

  2. 32 years and Healing

  3. Keep Cool and Carry On

  4. Caring for all Life under the Sun

Correct Option: A

Nations signed the Montreal Protocol in 1987 on

  1. Substances that deplete the ozone layer

  2. Gases that cause global warming

  3. Both (a) and (b)

  4. Neither (a) nor (b)

Correct Option: A

Where is the ozone layer located?

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

  4. Thermosphere

Correct Option: B

Where is the ‘Hole’ in the ozone layer located?

  1. Over the United States

  2. Over Europe

  3. Over Antarctica

  4. Around the equator

Correct Option: C

Where do CFCs come from?

  1. Spray cans

  2. Fire extinguishers

  3. Air conditioners

  4. All of the above

Correct Option: D

Why is the ozone layer important?

  1. Provide food for ocean bacteria

  2. Prevents hurricanes from forming

  3. Slows down global warming

  4. Absorbs ultraviolet rays from the sun that can cause cancer

Correct Option: D

When do scientists predict the ozone layer will heal and return to pre-1980 levels?

  1. Between the years 2050 and 2065

  2. By the year 2030

  3. Between the years 2080 and 2090

  4. By the year 3000

Correct Option: A

What is an ozone molecule formed from?

  1. 3 oxygen atoms

  2. 3 carbon dioxide atoms

  3. 2 carbon dioxide atoms

  4. 2 hydrogen atoms and 1 oxygen atom

Correct Option: A

Which of the following are ozone depleting substances?

  1. Chlorofluorocarbons (CFCs)

  2. Hydrofluorocarbons (HFCs)

  3. Hydrochlorofluorocarbons (HCFCs)

  4. Both B and C

Correct Option: D
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