CAPE Environmental Science Unit 1 · 2017 · Paper 2

31 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)1 markDefine the term 'ecological niche'.
2. 1(b)(i)1 markState what the region 'X' represents in Figure 1.
3. 1(b)(ii)4 marksDraw a diagram similar to Figure 1 showing how the niches of the two species will change over time.
4. 1(c)(i)2 marksIdentify two types of interactions, other than competition, between organisms in communities.
5. 1(c)(ii)4 marksDefine one of the types of interactions identified in (c)(i) and use an example to explain how it may influence the population numbers of an organism in an ecosystem.
6. 1(c)(iii)2 marksOutline the role of adaptation in addressing the interaction discussed in (c)(ii).
7. 1(c)(iv)6 marksDiscuss the relationship between species diversity and ecosystem stability.
8. 2(a)(i)3 marksExplain the difference between the methods used by Group I and Group II respectively.
9. 2(a)(ii)6 marksUsing the data collected by Group II, calculate the estimated density for Species A and the percentage frequency of Species B.
10. 2(a)(iii)3 marksThe results in Table 2 show a type of interaction between Species A and Species B. Use the data in the table to explain this type of interaction.
11. 2(b)(i)4 marksDescribe how the data in Tables 1 and 2 may be used to provide information on the distribution of the three plant species.
12. 2(b)(ii)4 marksExplain two ways in which human activities can disrupt the integrity of natural ecosystems.
13. 3(a)4 marksIdentify the demographic characteristics/factors labelled A, B, C and D in Figure 2.
14. 3(b)(i)4 marksOutline two reasons why urbanization is likely to occur in a Caribbean country.
15. 3(b)(ii)9 marksExplain three environmental impacts of urbanization in the Caribbean.
16. 3(b)(iii)3 marksDiscuss a suitable approach that can be used to minimize any one of the environmental impacts discussed in (b)(ii).
17. 4(a)(i)2 marksDefine the term 'total fertility rate'.
18. 4(a)(ii)2 marksDefine the term 'replacement level fertility'.
19. 4(b)4 marksCalculate the total fertility rate for EACH country in Table 3.
20. 4(c)3 marksUse the values calculated in (b) to determine which country is at its replacement level fertility. State two reasons for your response.
21. 4(d)(i)2 marksExplain the significance of the total fertility rates calculated for countries A and C.
22. 4(d)(ii)4 marksDescribe two environmental impacts that may occur as a result of the fertility rates in Country C.
23. 4(d)(iii)3 marksDiscuss one measure which Caribbean governments can implement to control birth rates.
24. 5(a)3 marksComplete Table 4 by stating an example of each type of natural resource shown (Ecosystems, Water, Landscape).
25. 5(b)(i)9 marksDiscuss three environmental impacts associated with this pattern of resource use.
26. 5(b)(ii)3 marksOutline one process that may be used to minimize the environmental impacts discussed in (b)(i).
27. 5(c)5 marksUsing a named example, explain how the Ramsar Convention may be used as a tool for natural resource conservation in the Caribbean.
28. 6(a)3 marksUse examples from the description of Country A to distinguish between consumptive and nonconsumptive uses of natural resources.
29. 6(b)6 marksOutline two environmental impacts that bauxite mining may have on Country A.
30. 6(c)(i)5 marksStakeholder groups suggested the use of a more stringent Environmental Impact Assessment (EIA) prior to the continuation of bauxite mining in Country A. Comment on the use of an EIA as a natural resource management tool.
31. 6(c)(ii)6 marksConsider the statement: "If a natural resource is to be exploited for foreign exchange earnings, it does not have to result in a depletion of its ecosystem value". Evaluate this statement using the example of Country A.