CAPE Environmental Science Unit 1 · 2018 · Paper 2

32 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)5 marksIn the space provided, draw a fully labelled diagram to illustrate the carbon cycle.
2. 1(a)(ii)3 marksOutline THREE ways in which carbon and the carbon cycle are important to organisms.
3. 1(b)(i)4 marksDistinguish between 'primary succession' and 'secondary succession'.
4. 1(b)(ii)2 marksState TWO possible causes of secondary succession.
5. 1(c)(i)2 marksDefine the term 'biotic potential'.
6. 1(c)(ii)4 marksExplain how environmental resistance affects population growth in natural ecosystems.
7. 2(a)(i)4 marksStudy Figure 1 and construct a food web for the ecosystem using the organisms shown in Figure 1.
8. 2(a)(ii)4 marksDiscuss TWO significant roles of the producers in the constructed food web.
9. 2(b)(i)2 marksDefine the term 'ecotone'.
10. 2(b)(ii)6 marksExplain how any THREE abiotic conditions existing in Zone A and its surroundings may influence the biotic components found in this area.
11. 2(b)(iii)4 marksIdentify TWO limiting factors present at the reef crest and explain how BOTH factors may affect the population of corals in this area.
12. 3(a)(i)2 marksState TWO deductions that can be made from the graph in Figure 2.
13. 3(a)(ii)2 marksCalculate the difference between the population of developing and industrialized countries in 1950 based on Figure 2.
14. 3(a)(iii)1 markState the time period which shows the GREATEST difference in population growth between developing and industrialized countries.
15. 3(b)6 marksExplain how culture and the socioeconomic status of women may result in the trend shown in Figure 2.
16. 3(c)(i)3 marksDefine the term 'sustainable development'.
17. 3(c)(ii)6 marksDiscuss THREE ways in which an increase in the fertility rate of a country may affect a country's ability to achieve sustainable development.
18. 4(a)(i)5 marksWith reference to Figures 3 and 4, state FIVE deductions about the population of Trinidad and Tobago.
19. 4(a)(ii)5 marksConstruct a table to show the difference between the populations of females in the age groups 15–29 for the years 1990 and 2010.
20. 4(b)(i)2 marksUse the graph to determine the total number of deaths resulting from HIV/AIDS for males and females in 2003.
21. 4(b)(ii)5 marksEvaluate the claims that the increasing number of HIV/AIDS deaths was responsible for the population trends in Figures 3 and 4 and that GDP may be affected as a result, referencing the data provided.
22. 4(b)(iii)3 marksExplain how education and awareness can be used to reduce the number of deaths from HIV/AIDS in Trinidad and Tobago.
23. 5(a)(i)3 marksOutline an experiment that could be conducted to determine if air emissions from the gas station could be affecting the children at Spice Town School.
24. 5(a)(ii)2 marksState whether the pollutants from the gas station would affect the school and justify your response based on the layout and wind direction in Figure 6.
25. 5(b)(i)6 marksExplain TWO major environmental impacts that may occur as a result of land use in Spice Town.
26. 5(b)(ii)3 marksList THREE measures or tools, except land use planning and zoning, that can be used for natural resource management and conservation.
27. 5(b)(iii)6 marksDescribe how land use planning and zoning regulations may be used as a mechanism for natural resource management and conservation in Spice Town.
28. 6(a)3 marksList THREE exhaustible natural resources, except bauxite, found in the Caribbean.
29. 6(b)(i)5 marksUse the grid provided on page 27 to draw a line graph to illustrate the data in Table 1.
30. 6(b)(ii)1 markSuggest ONE reason for the decline in the amount of bauxite mined in the Caribbean country during the period 1998–1999.
31. 6(b)(iii)6 marksUse TWO examples to explain the possible effect of this decline in bauxite production on the economy of this Caribbean country.
32. 6(c)5 marksSuggest how rehabilitation could be used to improve the former mine following its closure.