Two stone flakes are recovered from the same cliff. Flake P is found at a depth of 5.2 m and flake Q is found at a depth of 2.1 m. Geologists find evidence that earth movement folded and displaced the sediment layers after they formed.
Which statement about the ages of the two flakes is correct?
the flakes are probably the same age, because they were found in the same cliff
either flake could be older, because folding may have changed the order of the layers
flake Q is probably older, because folding always turns the layers upside down
flake P is probably older, because folding does not alter which layer lies deeper
45 exam-style questions on Edexcel GCSE Biology 4.2 Evidence for evolution and classification, covering 4.2.1 Fossil evidence for human evolution, 4.2.2 Stone tool evidence for human evolution, 4.2.3 Pentadactyl limb as evidence, and 4.2.4 Three domains classification. Each one has a worked solution and a mark scheme showing where the marks go.