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The evolution of Earth's atmosphere MatchUp
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Click on a top box, then click on its match below. Or, drag a top box and drop it onto the correct match. Match all pairs before clicking ‘Check’.
2.7 billion years
Crude oil
Carbon
Nitrogen
Sediments
Photosynthesis
Volcanic activity
Oxygen
Argon
Methane
200 million years
Coal
Carbon dioxide
Glucose
4.6 billion years
Process associated with algae and plants which uses up carbon dioxide
Makes up about 80% of the gases in the atmosphere
Makes up about 20% of the gases in the atmosphere
How long ago the proportions of gases in the atmosphere stabilised
Approximate age of the Earth
How long ago algae first started producing oxygen
Process suggested to have formed the Earth's early atmosphere and the oceans
Produced when carbon dioxide dissolved in the oceans
Major component of sedimentary rocks and fossil fuels
One molecule is produced for every 6 carbon dioxide and 6 water molecules which react together in the presence of light
Formed from the compressed remains of plants
Reactive gas possibly released by volcanoes
Major component of the atmosphere on Mars
Third most abundant gas in the Earth's atmosphere
Formed from the remains of plankton trapped under rocks