CAPE Environmental Science Unit 1 · 2015 · Paper 2

35 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 markName the type of ecological pyramid shown in Figure 1.
2. 1(a)(ii)3 marksUse the information in Figure 1 to calculate the amount of energy that is available at the level of the producers. Show all working.
3. 1(b)6 marksOutline THREE ways in which the phosphorus cycle may be impacted by the activities of humans.
4. 1(c)(i)1 markWhat is the population of iguanas in Year 2?
5. 1(c)(ii)3 marksDefine the term 'carrying capacity' AND use Figure 2 to estimate the carrying capacity of the mangrove habitat.
6. 1(c)(iii)6 marksDiscuss TWO factors that may influence population size at the carrying capacity.
7. 2(a)3 marksOutline the role of natural selection in the evolution of a species.
8. 2(b)(i)4 marksState FOUR deductions that can be made from the information provided in Table 1.
9. 2(b)(ii)3 marksState which of the three environments is expected to have the GREATEST species diversity AND give ONE reason to support your answer.
10. 2(b)(iii)6 marksExplain, using six points, how species diversity influences ecosystem stability.
11. 2(c)4 marksUse the information provided in Table 2 to calculate the population size of the manatees.
12. 3(a)(i)3 marksDeduce from the diagram whether Country A is a developing or developed country AND explain your answer.
13. 3(a)(ii)4 marksCalculate the number of persons in the population that belong to the pre-reproductive age group.
14. 3(b)6 marksExplain how temperature influences the distribution AND activities of human populations.
15. 3(c)4 marksUse the information in Table 3 to explain which country had the FASTEST growing population in 2012.
16. 3(d)3 marksDescribe the relationship between per capita GDP and the level of poverty in a country.
17. 4(a)(i)2 marksDefine the term 'per capita greenhouse gas emission'.
18. 4(a)(ii)3 marksExplain why people should be concerned about the level of greenhouse gas emissions in the atmosphere.
19. 4(a)(iii)4 marksIdentify the country, Country B or Country C, in which greenhouse gases are likely to have the greatest impact AND use the information in Table 4 to justify your answer.
20. 4(b)4 marksDiscuss TWO ways by which an increase in the fertility rate of a country may affect a country's ability to achieve sustainable development.
21. 4(c)(i)2 marksState the trend in the population of the native species AND the population of introduced species illustrated in Figure 4.
22. 4(c)(ii)2 marksSuggest ONE reason for the trend observed for the native species in Figure 4.
23. 4(c)(iii)3 marksCalculate the average annual decrease in population of the native species for the period represented in Figure 4.
24. 5(a)3 marksList THREE types of natural resources other than beaches that are found in the Caribbean.
25. 5(b)(i)4 marksEstimate the average annual rate of change of beach width at Dickenson Bay A over the period 1992 to 1999. Express your answer in m/year and show all working.
26. 5(b)(ii)1 markAssuming that the trend in beach width at Dickenson Bay A remains the same, predict the width of the beach at Dickenson Bay A in 2002.
27. 5(b)(iii)8 marksOutline FOUR problems that may be caused by the trend of beach width for Dickenson Bay A illustrated in Figure 5.
28. 5(c)4 marksCompare the use of forest resources by indigenous people and commercial operations. In your answer include TWO points.
29. 6(a)2 marksDefine the term 'non-consumptive' as it relates to the use of natural resources.
30. 6(b)(i)1 markIn which decade did the seaborne oil trade decline?
31. 6(b)(ii)2 marksState the trend in seaborne oil trade AND the trend in the amount of oil spilled as illustrated in Figure 6.
32. 6(b)(iii)6 marksGeographical and demographic factors could give rise to the trend in the seaborne oil trade while technological factors could give rise to the trend in the amount of oil spilled as illustrated in Figure 6. Explain this…
33. 6(c)(i)1 markName the international environmental and conservation agreement which would apply to the activities illustrated in Figure 6.
34. 6(c)(ii)4 marksOutline FOUR principles of the agreement identified in (c)(i) that allow it to be effective.
35. 6(d)4 marksSuggest ONE way in which the activities illustrated in Figure 6 may have an impact on biodiversity AND explain why the effects of this impact are likely to be minimal during the period 1990–2010.