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The atmosphere, greenhouse gases and pollution

Chemistry: rates, organic chemistry, analysis and the Earth · Lesson 4 of 5

Lesson 4 of 5

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Lesson 4 of 5 · Chemistry: rates, organic chemistry, analysis and the Earth

The atmosphere, greenhouse gases and pollution

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By the end you’ll be able to

Describe how the early atmosphere evolved: volcanic carbon dioxide and water vapour, oceans forming, oxygen from photosynthesis, and carbon locked into sedimentary rocks and fossil fuels
State the approximate composition of today’s atmosphere (about 80% nitrogen, 20% oxygen, small amounts of CO₂, water vapour and noble gases) and explain the greenhouse effect

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Describe the sources and effects of carbon monoxide, soot, sulfur dioxide and oxides of nitrogen from burning fuels

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