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5 marksWater and Waste Management

CSEC Human and Social Biology · January 2013 · Paper 2 · Question 6(c)

Residents treating floodwater from an overflowing reservoir with chlorine bleach still became ill.

Explain what the residents were trying to achieve by treating the water with bleach and why this treatment was NOT enough to ensure that the water was safe for human consumption.

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Other parts of this question

  1. 6(a)Define the term 'pollutant' and identify TWO sources of chemical pollutants.[4 marks]
  2. 6(b)Distinguish between the terms 'disinfectant' and 'antiseptic'.[2 marks]
  3. 6(d)Discuss how landfills in the Caribbean are NOT as effective today for disposing of refuse as they were many years ago.[4 marks]

More practice: the rest of this paper · more Water and Waste Management questions · all CSEC Human and Social Biology past papers