CAPE Environmental Science Unit 2 · 2013 · Paper 2

30 questions and parts from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

1. 1(a)(i)3 marksState THREE features of sustainable agriculture.
2. 1(a)(ii)5 marksUsing the data in Figure 1, make FIVE deductions about the perception of the level of importance of the different threats to sustainable agriculture.
3. 1(a)(iii)6 marksExplain, giving THREE reasons, why 'external shocks' are threats to sustainable agriculture.
4. 1(b)6 marksGive TWO reasons to justify the statement that more Caribbean people should become involved in agriculture because it can contribute to the economies of Caribbean countries.
5. 2(a)(i)5 marksDescribe the trends in fish production illustrated in Figure 2.
6. 2(a)(ii)4 marksSuggest TWO reasons why fish production from aquaculture shows the trend illustrated in Figure 2.
7. 2(a)(iii)4 marksOutline TWO impacts that this trend in fish production from aquaculture can have on the environment.
8. 2(b)(i)3 marksState THREE characteristics of commercial agriculture systems.
9. 2(b)(ii)4 marksRecommend TWO sustainable farming practices that the farmer should use to successfully farm the area shown in Figure 3. Give ONE reason why EACH practice is recommended.
10. 3(a)3 marksStudy Figure 4 and identify the substances present at points A, B, and C.
11. 3(b)3 marksWhy is a fuel cell considered a 'secondary energy source'?
12. 3(c)6 marksDiscuss the feasibility of fuel cells replacing gasoline as the fuel for motor vehicles in the Caribbean, referring specifically to the reliability of supply and economic factors.
13. 3(d)3 marksOutline the production and transmission of electricity using the combustion of a fossil fuel.
14. 3(e)(i)3 marksIn your answer booklet, sketch a graph of the data shown in Table 1.
15. 3(e)(ii)2 marksState TWO major trends that can be deduced from your sketch of electricity rates from 1971 to 1990.
16. 4(a)(i)3 marksOutline THREE steps the student will have to take to conduct this experiment.
17. 4(a)(ii)3 marksState THREE precautions the student will have to take to get the most accurate results.
18. 4(a)(iii)5 marksIdentify which light bulb is more efficient AND clearly explain how the experimental results in Table 2 allow you to reach your conclusion.
19. 4(b)(i)3 marksList THREE costs, other than generating and environmental costs, that could be included in the 'other costs' category.
20. 4(b)(ii)6 marksExplain why TWO of the costs listed in Part (b)(i) should be included in any discussion of the overall cost of using natural gas to produce electricity.
21. 5(a)2 marksExplain the difference between the terms 'pollutant' and 'pollution'.
22. 5(b)(i)5 marksWhat were the overall rates of increase in the per capita gross national income over the period 1990-2000 and 2000-2005?
23. 5(b)(ii)6 marksThe country completed a pollution index exercise where 0 indicates no pollution and 100 indicates high pollution; the index rose from 14 in 1990 to 73 in 2005. Use the information in Figure 6 and your answer to (b)(i)…
24. 5(c)(i)1 markState the name of the group of pollutants that the Montreal Protocol is used to control.
25. 5(c)(ii)6 marksDescribe the way in which the Montreal Protocol works to control the type of pollution identified in (c)(i) AND provide ONE reason for its success.
26. 6(a)5 marksOutline a plan that will allow you to determine the source of the problems being experienced by the residents and farmers of Green Valley Village, explaining clearly how the plan will allow you to determine the source.
27. 6(b)3 marksState THREE pollutants that are likely to be found in the Green Valley River.
28. 6(c)4 marksPersons fishing in the river below Green Valley Village have found fish highly contaminated with materials believed to originate from the landfill. Explain how fish found far from the landfill could be so highly…
29. 6(d)2 marksSuggest TWO measures that can be implemented to mitigate the impact of pollution on the residents and farmers in the Green Valley area.
30. 6(e)6 marksThe landfill is also a significant source of methane, a greenhouse gas. Explain how methane from the landfill can contribute to global warming.