CAPE Environmental Science Unit 2 · 2012 · Paper 2 · Question 5(a)(iv)

MODULE 3: Environmental Pollution questions. Figure 6 illustrates BOD levels in the effluent of a sewage treatment plant over a two-month period during which malfunctions occurred.

What were the first and last days of the LONGEST plant malfunction?

This question uses a figure or table from the paper — you'll see it when you practise.