During the Archean eon, the Earth's early atmosphere contained a very high concentration of carbon dioxide. Following the cooling of the planet and the condensation of water vapour, the levels of atmospheric carbon dioxide decreased dramatically.
Explain how the formation of the oceans led to this decrease in carbon dioxide.
97 exam-style questions on Edexcel GCSE Chemistry 9.2 Earth and atmospheric science, covering 9.2.1 The Earth's early atmosphere, 9.2.2 How the atmosphere evolved, 9.2.3 Chemical test for oxygen, and 9.2.4 The greenhouse effect and climate change. Each one has a worked solution and a mark scheme showing where the marks go.