2 marksPollution Concepts, Pathways, and Receptors

CAPE Environmental Science Unit 2 · 2021 · Paper 2 · Question 6(a)(ii)

A diagram shows a farm ecosystem where pesticides are sprayed onto crops to control pests.

Define the term 'biomagnification'.

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6(a)(i)Identify any THREE receptors for the pesticide that was sprayed on the farm in Figure 6.[3 marks]
6(a)(iii)In Figure 6, the numbers in brackets refer to the concentration of the pesticide found in each organism. Using this information, draw a flow chart to…[4 marks]
6(b)(i)The farmer on the farm in Figure 6 is concerned about pesticides getting into the stream. Explain how pesticides may get into the stream even though the farmer…[3 marks]
6(b)(ii)State THREE steps that may be taken to determine whether the pesticide is entering the stream.[3 marks]
6(b)(iii)Discuss ONE mitigative method to prevent pesticide pollution in the stream.[5 marks]

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