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3 marksPollution Concepts, Pathways, and Receptors

CAPE Environmental Science Unit 2 · 2021 · Paper 2 · Question 5(a)(i)

Dispersants are chemicals sprayed on oil to break it up into smaller droplets. A company wants to use a new, non-toxic dispersant, but scientists are concerned about potential synergistic effects.

What is meant by the term 'synergistic effects'?

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  1. 5(a)(ii)Explain the impact of the synergistic effect on the environment when a dispersant is sprayed on an oil spill to clean it up.[3 marks]
  2. 5(b)(i)Describe the general trend of the data shown in Figure 5.[3 marks]
  3. 5(b)(ii)Calculate the difference in the volume of oil spilled from tankers between the 1970s and 1980s.[3 marks]
  4. 5(c)(i)Discuss ONE impact that an oil spill would have on the economy of a Caribbean country.[4 marks]
  5. 5(c)(ii)At a school debate you are asked to justify why preventing an oil spill is more effective than cleaning up a spill that has occurred. Discuss ONE argument to…[4 marks]

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