A newspaper reports that global climate change is not caused by human activity. The report uses data from only one year. Why should this report be treated with caution?
It has not been written by a scientist who studies the climate
It may be based on only part of the evidence that is available
Data collected in one year cannot be measured accurately enough
Newspapers are not allowed to publish any scientific evidence
40 exam-style questions on AQA GCSE Chemistry 9.2 Carbon dioxide and methane as greenhouse gases, covering 9.2.1 Greenhouse gases, 9.2.2 Human activities which contribute to an increase in greenhouse gases in the, 9.2.3 Global climate change, and 9.2.4 The carbon footprint and its reduction. Each one has a worked solution and a mark scheme showing where the marks go.