Ozone Layer Depletion
Chemistry ⇒ Environmental Chemistry
Ozone Layer Depletion starts at 10 and continues till grade 12.
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See sample questions for grade 12
Calculate the number of oxygen atoms present in 1 mole of ozone (O3).
Describe one method used to monitor ozone layer thickness.
Describe the chemical process by which CFCs lead to the destruction of ozone molecules in the stratosphere.
Describe the impact of ozone layer depletion on amphibians.
Describe the role of sunlight in the breakdown of CFCs in the stratosphere.
Explain how ozone depletion can affect marine ecosystems.
Explain the difference between 'good' ozone and 'bad' ozone.
Explain the term 'ozone hole'.
Explain why CFCs are so persistent in the atmosphere.
Explain why the ozone hole is most prominent over Antarctica.
Explain why the replacement of CFCs with HFCs is not a complete solution to environmental problems.
Name two major sources of CFCs released into the atmosphere.
State one health effect of increased UV-B radiation due to ozone layer depletion.
State one reason why methyl bromide is considered an ozone-depleting substance.
State one reason why ozone depletion is a global issue rather than a local one.
What is the role of polar stratospheric clouds in ozone depletion?
Write the balanced chemical equation for the reaction between chlorine atom and ozone in the stratosphere.
