level: Chemistry of the Atmosphere
Questions and Answers List
level questions: Chemistry of the Atmosphere
| Question | Answer |
|---|---|
| Composition of today's atmosphere | Approx: 80% nitrogen, 20% oxygen, small amounts of other gases |
| Composition of early atmosphere | Mostly carbon dioxide, minimal oxygen, nitrogen and small amounts of methane and ammonia |
| Theory of how early atmosphere formed | Surface covered in volcanoes that erupted releasing lots of gases |
| How did the early atmosphere become the present atmosphere? | Water vapour condensed forming oceans Oceans dissolved carbon dioxide Oxygen levels built up over time from photosynthesis |
| Describe non/renewable resources from the earth and atmosphere | Crude oil and fossil fuels from compressed layers of dead animals and sediment Geothermal power, hydropower, wind power, biomass |