State the sampling strategy you used to select measurement sites or bedload samples when investigating downstream changes in river channel characteristics along a river course. Explain one disadvantage of using this sampling strategy in this physical environment.
Name of sampling strategy used: ............................................................
Explanation:
125 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.