Eduqas GCSE Geography A · C111
Component 1, Component 2, Component 3
Revise: Fieldwork Data Collection, Sampling and SketchesA control provides a comparison with an area apparently unaffected by the factor being investigated. For trampling, take at least five control quadrat measurements in different places away from the path. Choose areas otherwise as comparable as possible, so that differences are less likely to result simply from different growing conditions.