Quelpr
3 marksEnvironmental Quality and Pollution

CAPE Agricultural Science Unit 2 · 2015 (second paper) · Paper 2 · Question 1(b)(ii)

Figure 1 illustrates Antarctic ozone minimum measurements over several years in Dobson units (DU).

Explain how chlorofluorocarbons (CFCs) contribute to the observed trend in Figure 1.

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Other parts of this question

  1. 1(a)(i)State the function of ozone located in the stratosphere.[1 mark]
  2. 1(a)(ii)Using TWO chemical equations, describe the natural ozone–oxygen cycle.[4 marks]
  3. 1(b)(i)Describe the trend displayed in Figure 1.[2 marks]
  4. 1(c)(i)State the adoption date of the Montreal Protocol.[1 mark]
  5. 1(c)(ii)State the difference between the Montreal Protocol and the Kyoto Protocol.[2 marks]
  6. 1(c)(iii)State the number of countries that are Parties to the Montreal Protocol.[1 mark]
  7. 1(c)(iv)Suggest ONE benefit resulting from the global success of the Montreal Protocol.[1 mark]

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