Ozone Depletion and Dynamic Equilibrium Quiz
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Questions and Answers

Which one of the following is an example of an ozone-depleting substance mentioned in the text?

  • Sulfur dioxide
  • Carbon monoxide
  • Nitrogen oxides
  • Chlorofluorocarbons (CFCs) (correct)

    • What is the primary mechanism by which ozone-depleting substances damage the ozone layer according to the text?

  • They catalyze the formation of ozone, leading to ozone depletion.
  • They absorb UV radiation, preventing it from reaching the Earth's surface.
  • They increase the destruction of ozone in a repetitive cycle. (correct)
  • They increase the production of ozone in the stratosphere.

    • What is the primary effect of increased ultraviolet radiation reaching the Earth's surface according to the text?

  • It causes the ozone molecule to break apart, leading to a dynamic equilibrium.
  • It damages human living tissues, increasing the incidence of cataracts, mutation during cell division, and skin cancer. (correct)
  • It leads to the depletion of the ozone layer, allowing more ultraviolet radiation to reach the Earth.
  • It increases the productivity of photosynthetic organisms, especially phytoplankton.

    • What is the primary effect of increased ultraviolet radiation on biological productivity according to the text?

    <p>It damages photosynthetic organisms, especially phytoplankton, which form the basis of aquatic food webs.</p> Signup and view all the answers

    What is the primary method for reducing the release of ozone-depleting substances mentioned in the text?

    <p>Developing alternatives to gas-blown plastics, halogenated pesticides, propellants and aerosols.</p> Signup and view all the answers

    What is the role of UNEP (United Nations Environment Programme) in addressing the issue of ozone depletion according to the text?

    <p>UNEP has had a key role in providing information and creating international agreements for the protection of stratospheric ozone.</p> Signup and view all the answers

    Some ultraviolet radiation from the Sun is absorbed by stratospheric ozone causing the ozone molecule to break apart. This process is an example of a dynamic ________.

    <p>equilibrium</p> Signup and view all the answers

    Ozone depleting substances, including chlorofluorocarbons (CFCs), are used in aerosols, gas-blown plastics, pesticides, flame retardants, and ________.

    <p>refrigerants</p> Signup and view all the answers

    Halogen atoms from pollutants like chlorine increase the destruction of ozone in a repetitive cycle, allowing more ultraviolet radiation to reach the ________.

    <p>Earth</p> Signup and view all the answers

    Ultraviolet radiation reaching the Earth's surface can damage human living tissues, increasing the incidence of cataracts, mutation during cell division, skin cancer, and other subsequent effects on ________.

    <p>health</p> Signup and view all the answers

    Increased ultraviolet radiation can damage photosynthetic organisms, especially phytoplankton, which form the basis of aquatic ________ webs.

    <p>food</p> Signup and view all the answers

    Pollution management may be achieved by reducing the manufacture and release of ozone-depleting substances, such as recycling ________.

    <p>refrigerants</p> Signup and view all the answers

    Developing alternatives to gas-blown plastics, halogenated pesticides, propellants, and aerosols is a method for reducing the release of ________ substances.

    <p>ozone-depleting</p> Signup and view all the answers

    UNEP has had a key role in providing information, and creating and evaluating international agreements, for the protection of stratospheric ________.

    <p>ozone</p> Signup and view all the answers

    Some ultraviolet radiation from the Sun is absorbed by stratospheric ozone causing the ozone molecule to break apart. Under normal conditions, the ozone molecule will ________.

    <p>reform</p> Signup and view all the answers

    Halogen atoms from pollutants like chlorine increase the destruction of ozone in a repetitive cycle, allowing more ultraviolet radiation to reach the ________.

    <p>Earth</p> Signup and view all the answers

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