CAPE Environmental Science Unit 1 · 2004 · Paper 2

29 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 marksDistinguish between 'habitat' and 'niche'.
2. 1(b)4 marksWith reference to Figure 1, state four observations regarding the change in population density of both species over time.
3. 1(c)12 marksOutline four possible reasons for the observations made in (b).
4. 2(a)8 marksOutline four differences between primary and secondary ecological succession.
5. 2(b)6 marksDiscuss the relationship between ecological succession and climax communities in the stability of ecosystems.
6. 2(c)6 marksDescribe two ways in which human activities have affected the nitrogen cycle.
7. 3(a)4 marksGive four reasons why, in an ecosystem, a food web is generally more useful than a food chain.
8. 3(b)8 marksOutline four reasons for assigning trophic levels to each organism in an ecosystem.
9. 3(c)8 marksWith reference to Figure 2, explain why it is more energy efficient for humans to eat at lower trophic levels.
10. 4(a)2 marksDefine 'total fertility rate'.
11. 4(b)(i)8 marksDiscuss four factors that influence total fertility rate.
12. 4(b)(ii)4 marksExplain how each factor discussed in (b)(i) impacts on population growth rate.
13. 4(c)6 marksAssess how one of the factors identified in (b)(ii) contributes to the population growth rate in your country.
14. 5(a)2 marksWhat is meant by the term 'poverty'?
15. 5(b)8 marksCompare Gross National Product (GNP) and Human Development Index (HDI) as appropriate development indices of a country.
16. 5(c)10 marksAssess the validity of the statements and conclusion made in the given paragraph in light of past and current trends in world population growth.
17. 6(a)2 marksState two features of 'urbanization'.
18. 6(b)12 marksDiscuss four factors that contribute to urbanization.
19. 6(c)(i)2 marksOutline one negative environmental impact of urbanization.
20. 6(c)(ii)4 marksSuggest two solutions to the environmental problem outlined in (c)(i).
21. 7(a)3 marksUsing an appropriate example, explain what is meant by the term 'natural resource'.
22. 7(b)9 marksDiscuss three ways in which the natural resource identified in (a) is important to a named Caribbean country.
23. 7(c)(i)4 marksAssess one impact of the depletion of the natural resource identified in the named Caribbean country.
24. 7(c)(ii)4 marksDescribe a suitable approach that the named country may take to manage the natural resource identified.
25. 8(a)6 marksOutline three categories of protected areas as classified by the International Union for Conservation of Nature (IUCN).
26. 8(b)6 marksExplain three roles of protected areas in natural resource conservation.
27. 8(c)8 marksAssess the effectiveness of protected areas in conserving natural resources in a named Caribbean country.
28. 9(a)8 marksExplain the concept of ecotourism, including in your explanation four characteristics of ecotourism.
29. 9(b)12 marksDiscuss four ways in which ecotourism is effective as a tool for natural resource conservation in a named Caribbean country.