CAPE Environmental Science Unit 2 · 2004 · Paper 2

32 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)4 marksDescribe the importance of pesticide use in agriculture in the Caribbean.
2. 1(b)6 marksExplain the observations after the application of the pesticide as shown in Figure 1.
3. 1(c)10 marksDescribe ONE similarity and FOUR differences between using biological and chemical methods to control agricultural pests in the Caribbean.
4. 2(a)6 marksDiscuss health issues in relation to the threat to sustainable agricultural productivity.
5. 2(b)6 marksDiscuss threats to the sustainable livelihood of communities in relation to agricultural productivity.
6. 2(c)8 marksDiscuss land availability in relation to the sustainability of agricultural productivity.
7. 3(a)5 marksEvaluate no-tillage farming.
8. 3(b)5 marksEvaluate contour farming.
9. 3(c)5 marksEvaluate organic farming.
10. 3(d)5 marksEvaluate crop rotation.
11. 4(a)4 marksFrom the data presented in Table 1, outline the trends in energy generation in this country.
12. 4(b)8 marksOutline FOUR reasons why the trend of energy use identified in 4(a) is undesirable.
13. 4(c)(i)4 marksDiscuss ONE way that the country can diversify its source of energy.
14. 4(c)(ii)4 marksState TWO advantages and TWO disadvantages of the diversification approach discussed in (c)(i).
15. 5(a)2 marksWhat is 'liquid natural gas (LNG)'?
16. 5(b)12 marksAssess the use of LNG as a source of energy for generating electricity with reference to its production, transportation, and use.
17. 5(c)6 marksComment on the appropriateness of considering LNG to decrease oil dependence in the Caribbean countries mentioned.
18. 6(a)6 marksUsing ONE example in EACH case, distinguish between 'energy efficiency' and 'energy conservation'.
19. 6(b)(i)2 marksExplain what is meant by 'control of demand patterns' or 'demand management'.
20. 6(b)(ii)4 marksSuggest FOUR ways in which electricity generating companies in the Caribbean can achieve demand management.
21. 6(c)8 marksDiscuss TWO advantages and TWO disadvantages of implementing demand management initiatives at electricity generating companies in Caribbean countries.
22. 7(a)6 marksExplain the importance of the water quality parameters BOD, TSS, and TN in monitoring water pollution.
23. 7(b)6 marksIdentify ONE possible cause and ONE source in Caribbean countries that can influence EACH of the parameters (BOD, TSS, and TN).
24. 7(c)(i)6 marksDescribe TWO environmental impacts associated with water pollution.
25. 7(c)(ii)2 marksFor EACH impact identified in (c)(i), suggest ONE method to mitigate it.
26. 8(a)(i)4 marksExplain what is meant by 'the greenhouse effect'.
27. 8(a)(ii)2 marksExplain the importance of the greenhouse effect to life on Earth.
28. 8(b)8 marksDiscuss TWO factors which have contributed to global warming and the extent to which Caribbean countries have contributed to this phenomenon.
29. 8(c)6 marksDescribe TWO possible effects of global warming that may affect Caribbean countries.
30. 9(a)4 marksOutline TWO problems associated with the use of dump sites in the Caribbean.
31. 9(b)8 marksBased on the composition of solid waste shown in Figure 2, discuss how the volume of solid waste that reaches the dump could be reduced.
32. 9(c)8 marksDiscuss an alternative waste disposal method that is appropriate for Caribbean countries, including THREE advantages and ONE disadvantage of this method.