CAPE Environmental Science Unit 2 · 2011 · Paper 2

37 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)3 marksList THREE characteristics of commercial agricultural systems.
2. 1(b)(i)2 marksGive TWO examples of the use of technology in agriculture.
3. 1(b)(ii)4 marksFor EACH example given in (i) above discuss how it can be used to improve agricultural productivity.
4. 1(c)(i)5 marksBased on Figure 1 make FIVE deductions about the agricultural yield from the farm.
5. 1(c)(ii)6 marksGive THREE reasons why organic fertiliser is promoted as a feasible alternative to inorganic fertiliser despite the trend in Figure 1.
6. 2(a)(i)4 marksBased on Figure 2 make FOUR deductions about the contribution of subsistence and commercial agriculture to agro-processing, food security, GDP and employment.
7. 2(a)(ii)1 markWhat is the total percentage contribution made by subsistence agriculture in the Caribbean country?
8. 2(b)3 marksState THREE features of sustainable agriculture.
9. 2(c)8 marksGive FOUR reasons why climate change is a major threat to sustainable agriculture in the Caribbean.
10. 2(d)4 marksGive TWO reasons why agro-forestry is accepted as an environmentally sustainable practice in agricultural systems.
11. 3(a)2 marksDescribe the pattern of commercial energy resource use in Country Y.
12. 3(b)(i)1 markWhich of the commercial energy resources illustrated in Figure 3 is expected to experience increased usage in the future?
13. 3(b)(ii)1 markInto which classification does the energy resource described in (b)(i) above fall?
14. 3(b)(iii)2 marksUsing the information in Figure 3, determine which commercial energy resource(s) may be in complete disuse by 2100.
15. 3(b)(iv)4 marksGive an explanation for the answer you provided in (b)(iii).
16. 3(c)(i)4 marksWhich of the resources illustrated in Figure 3 would you recommend for increased investment in the Caribbean? Give ONE reason for your answer.
17. 3(c)(ii)2 marksState TWO limiting factors for the use of the energy resource recommended in (c)(i) above in a named Caribbean country.
18. 3(d)4 marksOther than the source mentioned in (c)(i) above, describe ONE method for improving energy conservation, including a discussion of how relevant this method is for Caribbean countries.
19. 4(a)(i)4 marksUse a flow diagram to illustrate the conventional generation of electricity using natural gas as the fuel.
20. 4(a)(ii)3 marksAnnotate the diagram to indicate the function of EACH unit in the process.
21. 4(b)(i)3 marksClassify the countries in Table 1 in terms of the magnitude of their electricity generation, using the criteria in Table 2 on page 7. Present your answer in a suitable table.
22. 4(b)(ii)4 marksSelect ONE country from each of the SMALL and LARGE size classes. Suggest an explanation for the difference in electricity consumption between the two countries.
23. 4(c)3 marksWhat is the difference in electricity generation between Grenada and St. Kitts and Nevis?
24. 4(d)3 marksOutline ONE impact of fossil fuel use on the environment in the electricity generation process.
25. 5(a)3 marksWhat are 'secondary air pollutants'?
26. 5(b)(i)1 markComplete Figure 5 to show ONE pathway by which the pesticide may enter humans.
27. 5(b)(ii)1 markComplete Figure 5 to show ONE pathway by which the pesticide may enter oceans.
28. 5(c)4 marksIdentify the processes in Figure 5 which are labelled A, B, C and D.
29. 5(d)(i)3 marksState THREE inferences that may be drawn from the results presented in Table 3.
30. 5(d)(ii)2 marksCalculate the minimum concentration factor of the pesticide in the tertiary consumers.
31. 5(d)(iii)6 marksExplain the pattern of pesticide concentration in the ecosystem that is shown in Table 3.
32. 6(a)(i)3 marksList THREE categories of waste produced in the Caribbean.
33. 6(a)(ii)3 marksMake THREE deductions from the information presented in Figure 6.
34. 6(a)(iii)2 marksBased on the information in Figure 6 estimate the projected waste production in 2010 for Country A.
35. 6(b)(i)4 marksAssess the effectiveness of legislation as a mitigation measure or solution for environmental pollution.
36. 6(b)(ii)4 marksAssess the effectiveness of policy incentives as a mitigation measure or solution for environmental pollution.
37. 6(b)(iii)4 marksAssess the effectiveness of public awareness and education as a mitigation measure or solution for environmental pollution.