Ozone Layer Depletion Quiz

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| By Vijaya Kousalya

Vijaya Kousalya

Community Contributor

Quizzes Created: 1 | Total Attempts: 461

Questions: 5 | Attempts: 462 | Updated: Mar 21, 2023

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Questions and Answers

1.

What type of compounds can damage the Earth's ozone layer?
- A.
  
  Chlorofluorocarbons
- B.
  
  Carbon dioxides
- C.
  
  Pesticides
Correct Answer
A. Chlorofluorocarbons

Explanation
Chlorofluorocarbons (CFCs) can damage the Earth's ozone layer. These compounds contain chlorine and fluorine atoms, which are released into the atmosphere when CFCs are emitted. Once in the atmosphere, CFCs can reach the stratosphere, where they are broken down by ultraviolet (UV) radiation. This process releases chlorine atoms, which then react with ozone molecules, leading to the destruction of the ozone layer. Carbon dioxides and pesticides do not have the same harmful effect on the ozone layer as CFCs.

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2.

Where do CFCs come from?
- A.
  
  Air conditioners
- B.
  
  Manufacturing foams
- C.
  
  All of the above
Correct Answer
C. All of the above

Explanation
CFCs, or chlorofluorocarbons, are chemical compounds that were commonly used in air conditioners and manufacturing foams. These compounds were popular due to their non-toxic and non-flammable properties. However, it was later discovered that CFCs contribute to the depletion of the ozone layer. Therefore, the correct answer is "All of the above" because CFCs can come from both air conditioners and manufacturing foams.

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3.

The Ozone hole is a much larger springtime decrease in ___ ozone around Erath’s polar regions.
- A.
  
  Exospheric
- B.
  
  Stratospheric
- C.
  
  Thermospheric
Correct Answer
B. StratospHeric

Explanation
The ozone hole refers to a significant reduction in the ozone layer specifically in the stratosphere, which is the correct answer. This depletion is more pronounced during springtime and occurs mainly around Earth's polar regions. The exosphere and thermosphere are not directly related to the ozone hole phenomenon.

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4.

The ozone layer prevents ___ from passing through the Earth’s atmosphere.
- A.
  
  Ultraviolet rays
- B.
  
  Infrared rays
- C.
  
  X-rays
Correct Answer
A. Ultraviolet rays

Explanation
The ozone layer acts as a protective shield in the Earth's atmosphere, preventing harmful ultraviolet (UV) rays from passing through. UV rays can cause various health problems, including skin cancer and cataracts. By absorbing and filtering out most of the UV radiation, the ozone layer plays a crucial role in maintaining the planet's overall ecological balance and safeguarding living organisms. In contrast, infrared rays and x-rays are not primarily blocked by the ozone layer.

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5.

Following form(s) of oxygen is (are) involved in the ozone-oxygen cycle.
- A.
  
  Atomic oxygen (O)
- B.
  
  diatomic oxygen (O2)
- C.
  
  Triatomic oxygen (O3)
Correct Answer
C. Triatomic oxygen (O3)

Explanation
The ozone-oxygen cycle involves the participation of triatomic oxygen (O3). This cycle is a series of chemical reactions that occur in the Earth's atmosphere and is responsible for the formation and depletion of ozone. In this cycle, ultraviolet radiation breaks down ozone into diatomic oxygen (O2) and atomic oxygen (O), which then reacts with other molecules to form ozone again. Therefore, triatomic oxygen (O3) plays a crucial role in maintaining the balance of ozone in the atmosphere.

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
May 13, 2020

Quiz Created by
Vijaya Kousalya

Ozone Layer Depletion Quiz

What type of compounds can damage the Earth's ozone layer?

Where do CFCs come from?

The Ozone hole is a much larger springtime decrease in ___ ozone around Erath’s polar regions.

The ozone layer prevents ___ from passing through the Earth’s atmosphere.

Following form(s) of oxygen is (are) involved in the ozone-oxygen cycle.