Ozone Layer Depletion Quiz

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| By Vijaya Kousalya
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Vijaya Kousalya
Community Contributor
Quizzes Created: 1 | Total Attempts: 421
Questions: 5 | Attempts: 421

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Ozone Layer Depletion Quiz - Quiz


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
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