CAPE Environmental Science Unit 1 · 2014 · Paper 2

41 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)2 marksCalculate the energy available at the primary consumer level.
2. 1(a)(ii)2 marksExplain how energy flows through the trophic levels.
3. 1(b)(i)2 marksDefine 'carrying capacity'.
4. 1(b)(ii)4 marksExplain the importance of carrying capacity in sustaining ecological balance.
5. 1(c)4 marksExplain why phosphorus serves as a limiting growth factor in terrestrial ecosystems.
6. 1(d)(i)4 marksUsing the data in Table 1 and an appropriate formula, calculate the estimated population size of deer in Royal Park.
7. 1(d)(ii)2 marksState TWO assumptions underlying the capture-mark-recapture technique.
8. 2(a)(i)3 marksExplain the trend observed in the population numbers of the predator and prey shown in the graph.
9. 2(a)(ii)3 marksCalculate the change in predator population size between Month 2 and Month 7.
10. 2(b)4 marksExplain the significance of natural selection in the evolution of species.
11. 2(c)4 marksExplain TWO ways human activities disrupt the integrity of natural ecosystems.
12. 2(d)(i)2 marksUsing Figure 3, calculate the combined number of individuals of the TWO least collected species.
13. 2(d)(ii)4 marksUsing an appropriate formula, calculate the species diversity for the school garden.
14. 3(a)(i)1 markDefine the term 'Human Development Index' (HDI).
15. 3(a)(ii)4 marksState FOUR deductions based on the data presented in Table 2.
16. 3(b)4 marksEvaluate the statement that educating women is critical for achieving sustainable development, providing FOUR points.
17. 3(c)(i)2 marksDefine 'per capita freshwater consumption'.
18. 3(c)(ii)3 marksCalculate the rate of change in per capita freshwater consumption from 2000 to 2003.
19. 3(c)(iii)2 marksSuggest a plausible reason for the trend observed in freshwater consumption shown in Figure 4.
20. 3(c)(iv)4 marksDescribe TWO potential environmental impacts on freshwater resources resulting from the trend shown in Figure 4.
21. 4(a)(i)1 markDefine 'infant mortality'.
22. 4(a)(ii)2 marksIdentify which country will have a faster growing population, giving a reason for your choice.
23. 4(a)(iii)2 marksIdentify which country is more likely a developing nation, giving a reason for your answer.
24. 4(b)(i)1 markDefine 'annual population growth rate'.
25. 4(b)(ii)2 marksCalculate the annual population growth rate for the country in 1990 using the data in Table 4.
26. 4(b)(iii)3 marksCalculate the population doubling time for the country for 2010.
27. 4(b)(iv)3 marksState the overall trend in the annual population growth rate and describe ONE implication for the country.
28. 4(c)6 marksDiscuss TWO impacts of accelerating population growth on less developed countries.
29. 5(a)3 marksState TWO ecological reasons and ONE ethical reason for conserving resources.
30. 5(b)4 marksExplain why traditional slash and burn agriculture by Indigenous Caribbean Peoples is considered sustainable.
31. 5(c)(i)2 marksCalculate the total mass of solid waste sent to the landfill from 1998 to 2000.
32. 5(c)(ii)2 marksEstimate the annual mass of municipal solid waste delivered to the landfill in 2005.
33. 5(c)(iii)3 marksState the trend illustrated in Table 5 and explain how introducing a recycling programme could mitigate this issue.
34. 5(d)(i)3 marksExplain how natural resource conservation is achieved using EITHER land use planning and zoning regulations OR sustainable yield management.
35. 5(d)(ii)3 marksSuggest THREE systems Caribbean governments can implement to effectively achieve natural resource conservation.
36. 6(a)2 marksExplain why fertile soil can be classified as both a renewable and an exhaustible natural resource.
37. 6(b)3 marksState ONE consumptive use and TWO non-consumptive uses of natural resources.
38. 6(c)(i)3 marksCalculate the combined total net primary productivity achievable from tropical rainforest and savannah ecosystems.
39. 6(c)(ii)2 marksIdentify which ecosystems possess the HIGHEST and LOWEST average net primary productivity.
40. 6(d)(i)4 marksIdentify THREE specific natural resources found in a named Caribbean country.
41. 6(d)(ii)6 marksDiscuss TWO distinct reasons for the importance of EACH of the three natural resources named in Part (d)(i).