For a physical geography fieldwork enquiry you have undertaken to investigate a river environment, you measured channel velocity and sediment size at several sites downstream. You presented the velocity data in a line graph and the sediment-size data in a proportional-symbols map; the results showed a general downstream increase in velocity and decrease in sediment size, with anomalies at some sites. Evaluate the extent to which these data presentation techniques allowed you to effectively analyse spatial variations along the channel profile.
118 exam-style questions on Edexcel A GCSE Geography Investigating physical environments (rivers or coasts). Each one has a worked solution and a mark scheme showing where the marks go.