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CSEC Human and Social Biology · January 2010 · Paper 2 · Question 10(b)

Figure 6 shows materials (wire attached to handles, small pot, pot with handle and cover, heat source) for water purification at home.

Describe TWO ways of purifying water using the materials shown in Figure 6.

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Other parts of this question

  1. 10(a)Complete Table 1 by identifying the missing origin of carbon dioxide (i), the pollutant from car exhaust toxic to the nervous system (ii), and an effect of…[3 marks]
  2. 10(c)Suggest TWO water-borne diseases that can be contracted if bacteria are NOT removed from drinking water.[2 marks]

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