Question 1 Report
The table below shows beach-profile measurements collected at the same location before and after a spring storm. Fig. 1 shows how the team stretched a tape from a fixed peg on the promenade to the sea. They measured vertical height at 5 m intervals. The council will use the results to decide whether more sand should be added before the tourist season.
| Distance from fixed peg (m) | Beach height before storm (m) | Beach height after storm (m) |
|---|---|---|
| 5 | 3.2 | 2.8 |
| 15 | 2.6 | 2.0 |
| 25 | 1.8 | 1.1 |
| 35 | 0.7 | 0.4 |
(a) Which distance shows the greatest fall in beach height? [1]
(b) Draw two lines on a graph to compare the beach profiles before and after the storm. [2]
(c) Outline how beach nourishment may reduce erosion of the promenade. [2]
(a) 25 m, fall of 0.7 m [1] (b) Award [1] for suitable axes, scale and units; [1] for both correctly plotted and identified profile lines (c) Added sand makes a wider / higher beach [1]; waves lose energy across the sediment before reaching the promenade [1]
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