A research team investigates how methane absorbs infrared radiation. Before the team's report is published, four checks are proposed. Which check shows that the report has been peer-reviewed?
The research team checks its calculations using a second spreadsheet
A government adviser checks that the conclusions agree with current policy
Atmospheric chemists not involved in the study assess its methods and evidence
The journal editor checks that the report follows the required layout
73 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.