CAPE Environmental Science Unit 1 · 2013 · Paper 2

33 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)3 marksName the types of bacteria responsible for allowing Processes I, II, and III to occur.
2. 1(a)(ii)6 marksExplain THREE ways in which human activities can alter the nitrogen cycle.
3. 1(a)(iii)5 marksJustify the advice given to a farmer that intercropping with legumes regularly could reduce the expenditure on nitrogen fertilizers.
4. 1(b)(i)3 marksCalculate the species diversity for Ecosystem C using the provided formula: \[ D = \frac{N(N-1)}{\sum n(n-1)} \]
5. 1(b)(ii)3 marksIdentify which of the three ecosystems is likely to better withstand an ecological disturbance, giving ONE reason for your answer.
6. 2(a)3 marksOutline the role played by natural selection in the evolution and adaptation of a species.
7. 2(b)(i)3 marksState THREE deductions that can be drawn from Figure 2.
8. 2(b)(ii)2 marksUsing data values from Figure 2, determine which two anthropogenic activities combined have the HIGHEST impact on the terrestrial ecosystem.
9. 2(b)(iii)6 marksExplain why the discharge of untreated sewage into aquatic ecosystems should NOT be encouraged.
10. 2(c)6 marksProvide an explanation for the distribution pattern of fish shown across the pH gradient in Figure 3.
11. 3(a)4 marksDistinguish between the Human Development Index (HDI) and the Gender Development Index (GDI).
12. 3(b)(i)3 marksExplain how climate can affect human population density.
13. 3(b)(ii)3 marksExplain how the economy can affect human population density.
14. 3(c)(i)3 marksDescribe the trend of urbanisation for each country based on the data in Table 2.
15. 3(c)(ii)3 marksGiven that Country B had a total population of 7.5 million in 1980, calculate the number of people who lived in rural areas in 1980.
16. 3(d)(i)2 marksIdentify TWO environmental impacts depicted in the provided photographs.
17. 3(d)(ii)2 marksExplain ONE measure to mitigate ONE of the environmental impacts identified in part (d)(i).
18. 4(a)4 marksState FOUR deductions that can be made from the graph regarding the relationship between female education level and total fertility rate.
19. 4(b)4 marksSuggest TWO reasons explaining the relationship observed between total fertility rate and women's education level.
20. 4(c)6 marksExplain how an increase in a country's fertility rate can affect its ability to use natural resources sustainably.
21. 4(d)(i)2 marksDefine the term 'per capita waste production'.
22. 4(d)(ii)4 marksDetermine which country, A or B, experiences a greater overall impact from waste production on the environment, providing THREE reasons to support your conclusion.
23. 5(a)(i)3 marksDescribe how a tax incentive works as a mechanism to manage natural resource use.
24. 5(a)(ii)3 marksCalculate the average annual increase in solar water heaters sold during the first five years following the introduction of the tax incentive policy.
25. 5(a)(iii)6 marksEvaluate the effectiveness of the tax incentive in modifying citizen behaviour regarding natural resource use, citing actual data values from Figure 5.
26. 5(b)(i)4 marksProvide the correct answer distinguishing a renewable resource from an inexhaustible resource, and explain why the student's statement that they are identical is incorrect.
27. 5(b)(ii)4 marksExplain how technological factors can affect natural resource use in the Caribbean, and explain why the student's response focusing on population growth was incorrect.
28. 6(a)4 marksPresent TWO arguments supporting the classification of landscapes as natural resources.
29. 6(b)3 marksUsing an example, explain what is meant by the 'non-consumptive' use of a natural resource.
30. 6(c)6 marksState TWO reasons for the importance of ONE named natural resource to a specified Caribbean country.
31. 6(d)(i)4 marksDetermine which five-year period experienced the greatest decline in forest cover, showing all mathematical working.
32. 6(d)(ii)1 markGiven that the country's total land area is 512,800 ha, calculate the percentage of the country under forest cover in 2005.
33. 6(d)(iii)2 marksGive TWO reasons supporting the view of an environmental group that the government should promote active forest conservation.