How does the density of the Earth's atmosphere change as the altitude above the ground increases?
It decreases as altitude increases
It increases as altitude increases
It stays constant at all altitudes
It increases then becomes constant
41 exam-style questions on AQA GCSE Physics 5.5 Pressure and pressure differences in fluids, covering 5.5.1 Pressure in a fluid and 5.5.2 Atmospheric pressure. Each one has a worked solution and a mark scheme showing where the marks go.