A computer simulation of Earth is run with carbon dioxide, methane and water vapour removed from the atmosphere. The amount of radiation reaching Earth from the Sun is unchanged.
What change would the simulation predict?
More infrared radiation from the surface would escape to space, so the average surface temperature would fall.
The average surface temperature would stay the same, because the radiation from the Sun is unchanged.
Less infrared radiation from the surface would escape to space, so the average surface temperature would rise.
Less of the Sun's visible light would be absorbed by the atmosphere, so the average surface temperature would rise.
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.