CAPE Environmental Science Unit 1 · 2019 · Paper 2

37 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 marksDefine the term 'fundamental niche'.
2. 1(a)(ii)2 marksDefine the term 'realized niche'.
3. 1(b)4 marksDescribe TWO ways in which human activities may affect the stages of the water cycle.
4. 1(c)(i)5 marksUse the information in Table 1 to construct a pyramid of numbers in the space provided.
5. 1(c)(ii)4 marksExplain why the pyramid of biomass for a marine ecosystem is inverted.
6. 1(c)(iii)3 marksDescribe ONE example of commensalism that may occur in a marine ecosystem.
7. 2(a)(i)2 marksDefine the term 'biotic potential'.
8. 2(a)(ii)3 marksExplain how environmental resistance regulates population growth in a natural ecosystem.
9. 2(b)(i)2 marksExplain what is happening to the red deer population at the point X.
10. 2(b)(ii)3 marksExplain what will happen if the population of red deer exceeds the carrying capacity.
11. 2(c)2 marksState TWO human activities that may have a negative impact on a mangrove ecosystem.
12. 2(d)(i)4 marksOn the grid provided on page 13, draw a bar graph to represent the data in Table 2.
13. 2(d)(ii)3 marksGiven a choice between a line transect and a belt transect, which ONE is more suitable for conducting the study above? Explain your answer.
14. 2(d)(iii)1 markState ONE precaution that should be taken when collecting data using a line transect.
15. 3(a)2 marksState TWO ways in which human beings adapt to their environment.
16. 3(b)(i)5 marksUse the grid on page 15 and the information in Table 3 to draw an age-sex diagram.
17. 3(b)(ii)2 marksBarbados has an annual growth rate of 0.3%. What is meant by the term 'annual growth rate'?
18. 3(b)(iii)3 marksCalculate the doubling time of the Barbadian population.
19. 3(c)(i)2 marksName TWO indices which are used to assess poverty.
20. 3(c)(ii)2 marksExplain why the indices named in (c)(i) are suitable for assessing poverty.
21. 3(iii)4 marksUse an example from the Caribbean region to outline how population growth may lead to deforestation and species loss.
22. 4(a)(i)2 marksDefine the term 'urbanization'.
23. 4(a)(ii)1 markState ONE cause of urbanization.
24. 4(a)(iii)4 marksTraffic congestion occurs as a result of urbanization. Outline TWO ways in which traffic congestion impacts the environment.
25. 4(b)(i)3 marksState THREE trends observed in the graph.
26. 4(b)(ii)4 marksCalculate the percentage decrease in Guyana's population between 2011 and 2016.
27. 4(b)(iii)6 marksSuggest THREE possible reasons for the trend in Guyana's population between 2011 and 2016.
28. 5(a)4 marksComplete Table 4 to show the category of a natural resource, an example of a natural resource and a Caribbean country in which EACH of the listed categories of natural resource can be found.
29. 5(b)(i)4 marksWhat is the value of the conch fishery in Country A, given that the total fisheries value in Country A is US$79 600 000?
30. 5(b)(ii)6 marksCountry A would like to increase the exploitation of its fisheries resource. Explain how ONE political and ONE economic factor can influence Country A's exploitation of its fisheries resource.
31. 5(b)(iii)6 marksDiscuss TWO ways in which the fisheries resource may be important to Country A.
32. 6(a)3 marksList THREE measures for resource conservation, other than the establishment of protected areas.
33. 6(b)(i)2 marksDuring which period was there the greatest change in the number of organisms?
34. 6(b)(ii)1 markDuring the period 2000-2015, a new national park was established in the country. Based on the data provided in Figure 5, in what year was the park established?
35. 6(b)(iii)6 marksUsing the information in Figure 5, explain whether the establishment of the national park in the country was an effective tool for natural resource conservation. Your explanation should include data from Figure 5.
36. 6(c)4 marksA newspaper report on the opening of the new national park stated 'The establishment of a new national park in this country is an expression of the need for natural resource conservation.' Give TWO reasons to justify…
37. 6(d)4 marksA group of indigenous people live within the boundaries of the new national park. The management agency for the national park approves this arrangement. Is this arrangement likely to result in any environmental…