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3 marksWater and Land Pollution

CAPE Environmental Science Unit 2 · 2006 · Paper 2 · Question 7(a)

Figure 3 shows the variation in coral cover between 1970 and 2000 for a Caribbean island, Z. Coastal waters indicate high turbidity and faecal coliform.

Outline the trend shown in Figure 3.

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Other parts of this question

  1. 7(b)Identify the TWO major types of water pollutant existing in the coastal waters of Island Z.[2 marks]
  2. 7(c)(i)For EACH of the pollutants identified in (b) above, state its nature.[2 marks]
  3. 7(c)(ii)For EACH of the pollutants identified in (b) above, state its source.[2 marks]
  4. 7(d)Explain how the loss of coral cover could be caused by ONE of the pollutants identified.[4 marks]
  5. 7(e)Outline a water treatment process that would address the high levels of faecal coliform in coastal waters.[7 marks]

More practice: the rest of this paper · more Water and Land Pollution questions · all CAPE Environmental Science Unit 2 past papers