CAPE Environmental Science Unit 1 · 2006 · Paper 1

28 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)1 markIdentify Process A.
2. 1(a)(ii)1 markIdentify Process C.
3. 1(b)1 markState the source of energy driving the water cycle.
4. 1(c)6 marksOutline each of the processes identified in (a), indicating how the source identified in (b) drives each process.
5. 2(a)(i)2 marksDefine the term 'biotic potential'.
6. 2(a)(ii)2 marksDefine the term 'environmental resistance'.
7. 2(b)3 marksOutline, citing one example, how biotic potential and environmental resistance interact to maintain populations within the carrying capacity of an ecosystem.
8. 3(a)(i)3 marksExplain, using an appropriate example, the interaction that occurs in commensalism.
9. 3(a)(ii)3 marksExplain, using an appropriate example, the interaction that occurs in mutualism.
10. 3(b)2 marksDistinguish between 'predation' and 'parasitism'.
11. 4(a)3 marksOutline the impact of humans on the abiotic component of a natural ecosystem.
12. 4(b)3 marksOutline the impact of humans on the biotic component of a natural ecosystem.
13. 5(a)2 marksState two differences between the population profile of Country A and Country B.
14. 5(b)(i)1 markPredict which country will have the faster growing population in the future.
15. 5(b)(ii)3 marksExplain your prediction in (b)(i).
16. 6(a)3 marksState three reasons for the growth in urban population in developing countries.
17. 6(b)6 marksOutline two ways in which urban populations impact on biogeochemical cycles.
18. 77 marksState whether you agree with the relationship suggested by Figure 3, and justify your answer.
19. 8(a)6 marksCalculate the percentage increase of the population during the year 2000.
20. 8(b)2 marksAt the present rate of growth, determine in what year the population size will double.
21. 9(a)2 marksName two natural ecosystems found in the Caribbean.
22. 9(b)6 marksOutline the benefits to society of the two ecosystems named in (a).
23. 10(a)3 marksList three demographic characteristics of a population that influence its rate of exploitation of natural resources.
24. 10(b)6 marksFor any two of the characteristics listed in (a), outline how each affects natural resource use.
25. 11(a)3 marksDistinguish between 'species depletion' and 'species extinction'.
26. 11(b)4 marksState four causes of species depletion or species extinction.
27. 12(a)3 marksDescribe the method of cultivation practised by the majority of indigenous peoples.
28. 12(b)3 marksExplain why the cultivation method described in (a) is considered to be sustainable.