Suggest why presenting the rapid growth of informal settlements (slums) in Sub-Saharan African cities as the 'number of new dwellings built per hour' might be more effective for urban planners and non-governmental organisations (NGOs) than using annual percentage growth rates.
116 exam-style questions on AQA GCSE Geography Urban issues and challenges, covering Urban issues and challenges. Each one has a worked solution and a mark scheme showing where the marks go.