Statement 1: Most radiation from the Sun passes through the atmosphere because it has a short wavelength.
Statement 2: The warmed surface of the Earth emits longer-wavelength infrared radiation.
Statement 3: Greenhouse gases warm the Earth by reflecting infrared radiation back towards the surface, like a mirror.
Statement 4: Without any greenhouse gases, the mean surface temperature of the Earth would be much lower than it is today.
Which statements are correct?
1 and 2 only
1, 2 and 4 only
2, 3 and 4 only
1, 2, 3 and 4
51 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.