CAPE Environmental Science Unit 1 · 2007 · 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)4 marksState the name of EACH of the TWO groups of organisms, A and B. Give ONE example of an organism in EACH group.
2. 1(b)8 marksExplain how the role of EACH group of organisms is important to the functioning of the ecosystem.
3. 1(c)8 marksExplain how human activity may disrupt the feeding relationship illustrated in Figure 1, including TWO ways in your response.
4. 2(a)(i)2 marksWhat is meant by ecological succession?
5. 2(a)(ii)2 marksWhat is meant by a climax community?
6. 2(b)6 marksOutline THREE differences between 'primary ecological succession' and 'secondary ecological succession'.
7. 2(c)(i)4 marksCalculate the species diversity for Stream A using the formula D = N(N - 1) / Σ n(n - 1).
8. 2(c)(ii)2 marksRank the THREE streams in decreasing order of species diversity.
9. 2(c)(iii)1 markWhich of the three streams, A, B or C, is the most stable?
10. 2(c)(iv)3 marksJustify your answer to 2(c)(iii).
11. 3(a)1 markState the name of ANY ONE of the growth stages, AB, BC or CD, shown in Figure 2.
12. 3(b)9 marksOutline the features of EACH growth stage, AB, BC and CD, shown in Figure 2.
13. 3(c)6 marksExplain how environmental resistance influences the shape of the curve from A to D in Figure 2.
14. 3(d)(i)2 marksSuggest ONE environmental condition in the ecosystem that would cause growth along interval DE.
15. 3(d)(ii)2 marksSuggest ONE environmental condition in the ecosystem that would cause growth along interval DF.
16. 4(a)4 marksCalculate the doubling time for the population of Country B.
17. 4(b)6 marksUsing the result from 4(a) and the information in Table 2, evaluate whether both countries need to implement population control measures.
18. 4(c)(i)2 marksState TWO factors that affect the population growth rate of a country.
19. 4(c)(ii)8 marksExplain how EACH of the factors stated in (c)(i) affects human population growth rate.
20. 5(a)2 marksDefine 'total fertility rate'.
21. 5(b)7 marksCompare the infant mortality rate and the total fertility rate of Country Y with average rates in Caribbean countries.
22. 5(c)5 marksExplain how infant mortality rate and fertility rate impact on the rate of growth of a population.
23. 5(d)6 marksDescribe the relationship between the rate of growth of the population and the rate of deforestation.
24. 6(a)(i)2 marksDefine 'poverty'.
25. 6(a)(ii)5 marksJustify the relationship in the 'cycle of poverty' illustrated in Figure 3.
26. 6(b)(i)3 marksState THREE social impacts of poverty.
27. 6(b)(ii)2 marksWhat is meant by 'sustainable development'?
28. 6(b)(iii)8 marksEvaluate the statement: 'Finding solutions to the problems of poverty is necessary if a country is to achieve sustainable development', presenting at least TWO reasons to support your position.
29. 7(a)3 marksExplain why water is considered a 'natural resource'.
30. 7(b)9 marksExplain how water is important as a natural resource in a named Caribbean territory, including FOUR uses of water.
31. 7(c)8 marksExplain how ANY TWO of the following measures are important in the management of water resources: (i) Education and awareness, (ii) Legislation, (iii) Environmental Impact Assessments (EIAs).
32. 8(a)4 marksState FOUR environmental impacts associated with the use of land resources in a named Caribbean country.
33. 8(b)8 marksDescribe TWO of the environmental impacts listed in 8(a).
34. 8(c)8 marksDescribe TWO measures you would recommend for addressing EACH of the impacts described in 8(b).
35. 9(a)3 marksList THREE factors that may impact on the exploitation of the limestone resource mentioned above.
36. 9(b)9 marksExplain how EACH of the factors listed in 9(a) could impact on the exploitation of the limestone resource mentioned above.
37. 9(c)8 marksOutline FOUR environmental impacts that may result from the exploitation of the limestone resource.