June 04: Paper 1: Hydrology No. 6:
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Fig. 1A
Fig.1B
1 Fig. 1A shows the catchments of two rivers, X and Y. Fig. 1B shows their hydrographs over 24 hours, during which there was a period of rainfall. (a) Using Fig. 1B, describe the differences between the discharges of rivers X and Y in response to the rainfall. [4] (b) Using both Figs 1A and 1B, explain why the discharges of the two rivers are different. [6]
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