Two undisturbed sites contain ash from the same volcanic eruption, dated to 1.0 million years ago. Tool P is below this ash at site X. Tool Q is above this ash at site Y.
Which pair of ages is consistent with both positions?
P: 0.8 million years; Q: 0.6 million years
P: 1.2 million years; Q: 0.8 million years
P: 0.8 million years; Q: 1.2 million years
P: 1.2 million years; Q: 1.4 million years
40 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.