O-LevelGeographyThe natural environment2217/22 · May/June 2015 · Q68 Marks

Study Fig. 6, which shows data for tropical storms in the Atlantic Ocean in 2012. [Figure 6]

(a)(i)Complete Fig. 6 by plotting the data for the last storm of 2012, in which the wind speed reached 80 km per hour with a minimum pressure of 1000 mb.[1]
(a)(ii)Draw a best fit line on Fig. 6.[1]
(a)(iii)What type of graph is Fig. 6?[1]
(a)(iv)Describe the relationship shown on Fig. 6.[1]
(b)(i)It can be concluded that there is no relationship between maximum wind speed and the number of deaths. What is the evidence from Fig. 7 for this conclusion?[1]
(b)(ii)Suggest factors which may influence the number of deaths caused by a tropical storm.[3]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Mark scheme

Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.

[1] (a) (i) Data plotted correctly
[1] (a) (ii) Best fit line correct
[1] (a) (iii) Scattergraph
[1] (a) (iv) Negative relationship
[1] (a) (iv) As pressure increases, maximum wind speed decreases
[1] (b) (i) Not possible to draw a best fit line
[1] (b) (i) Points do not lie in a line
[1] (b) (i) Death toll is zero or low at a wide range of wind speeds
[3] (b) (ii) Size of population in area
[3] (b) (ii) Amount of warning given
[3] (b) (ii) Access to emergency services
[3] (b) (ii) Preparedness of population / emergency planning / drill / evacuation
[3] (b) (ii) Sheltering effect of relief
[3] (b) (ii) Location in relation to river / floodplain / coast
[3] (b) (ii) Effectiveness of drainage
[3] (b) (ii) Building construction

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