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4 marksElectricity Generation, Demand, and Management

CAPE Environmental Science Unit 2 · 2019 · Paper 2 · Question 5(b)(iv)

Chemical composition of lignite coal found in Chatham presented in a pie chart.

Explain TWO ways in which the pollution problem at coal-burning electrical power plants can be mitigated by technological solutions.

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Other parts of this question

  1. 5(a)(i)Define the term 'pollutant'.[2 marks]
  2. 5(a)(ii)State the name of TWO pollutants, other than carbon dioxide, that are MOST likely to be found in the air at Chatham during the lignite fire.[2 marks]
  3. 5(a)(iii)Choose ONE of the pollutants named in (a)(ii) and explain how it impacts both human health AND the environment.[6 marks]
  4. 5(b)(i)Determine the percentage of sulphur present in the lignite.[3 marks]
  5. 5(b)(ii)Calculate the mass in grams of sulphur that would be found in a 1 kg sample of the lignite.[2 marks]
  6. 5(b)(iii)State ONE method of mitigating the problem of pollutants produced by coal combustion in an electrical power plant, other than technological solutions.[1 mark]

More practice: the rest of this paper · more Electricity Generation, Demand, and Management questions · all CAPE Environmental Science Unit 2 past papers