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AP®Environmental ScienceCollege BoardExam QuestionsUnit 9: Global ChangeReducing Ozone Depletion

Reducing Ozone Depletion (College Board AP® Environmental Science): Exam Questions

10 mins10 questions
11 mark

Which of the following legislation banned the use of chlorofluorocarbons?

  • The Comprehensive Environmental Response, Compensation, and Liability Act

  • The Safe Drinking Water Act

  • The Delaney Clause

  • The Montreal Protocol

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21 mark

One solution to reduce the harm caused by chlorofluorocarbons (CFCs) is to replace them with hydrofluorocarbons (HFCs).

Which of the following describes a disadvantage to this solution? 

  • Hydrofluorocarbons (HFCs) can biomagnify, disrupting food chains.

  • Hydrofluorocarbons (HFCs) can react with water in the atmosphere to form acid deposition.

  • Hydrofluorocarbons (HFCs) are potent greenhouse gases that can cause climate change.

  • Hydrofluorocarbons (HFCs) can create thermal inversions, trapping pollutants at ground level.

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31 mark

Which of the following strategies has been implemented to reduce the impact of ozone-depleting chemicals?

  • The use of HFCs (hydrofluorocarbons).

  • Increasing the use of chlorofluorocarbons (CFCs) in industrial applications to improve efficiency.

  • Promoting the widespread use of aerosol sprays containing CFCs to reduce pollution.

  • Releasing ozone gas directly into the atmosphere to replenish the ozone layer.

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41 mark

Which of the following chemicals was primarily responsible for the depletion of the ozone layer?

  • Carbon dioxide

  • Chlorofluorocarbons (CFCs)

  • Sulfur dioxide

  • Methane

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51 mark

What is the function of ozone in the stratosphere?

  • It traps heat and contributes to global warming

  • It provides oxygen for respiration

  • It reflects visible light to cool the planet

  • It absorbs and blocks ultraviolet (UV) radiation from the Sun

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61 mark

Which of the following alternatives to CFCs is less harmful to the ozone layer?

  • Fluorinated gases

  • HCFCs refrigerants

  • Carbon tetrachloride

  • Asbestos

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71 mark

Why is ozone depletion more severe over Antarctica?

  • Higher fossil fuel use in the Southern Hemisphere

  • Presence of ice crystals and polar stratospheric clouds

  • Lack of sunlight during winter

  • High levels of volcanic activity

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81 mark

Which of the following is a human health benefit of reducing ozone depletion?

  • Decreased asthma attacks from cleaner air

  • Increased oxygen levels in the atmosphere

  • Reduced skin cancer rates from decreased UV exposure

  • Protection from acid rain exposure

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91 mark

Which strategy would most directly help reduce future ozone depletion?

  • Switching to coal-fired power plants

  • Banning the use of nitrogen fertilizers

  • Increasing sulfur emissions to block sunlight

  • Proper disposal of old refrigerants containing CFCs

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101 mark

Which of the following international agreements was established to reduce substances responsible for ozone depletion?

  • Kyoto Protocol

  • Clean Air Act

  • Montreal Protocol

  • Paris Agreement

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