A group of geography students investigated noise pollution in a suburban town centre. They used a decibel meter app on their mobile phones to take a single sound level reading at five different street corners at 12:00 PM on a Tuesday.
Suggest two ways that this data collection method could be adapted to make the data more reliable.
102 exam-style questions on AQA GCSE Geography Fieldwork. Each one has a worked solution and a mark scheme showing where the marks go.