Biology, asked by sudhakarjh34, 5 months ago

How was the Earth's atmosphere before the origin of organisms?​

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Answered by shreyash7121
2

Before life began on the planet, Earth's atmosphere was largely made up of nitrogen and carbon dioxide gases. After photosynthesizing organisms multiplied on Earth's surface and in the oceans, much of the carbon dioxide was replaced with oxygen.

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Evolution of the atmosphere: Additional Information

Additional Reading

Astrophysical considerations bearing on the earliest stages of atmospheric development are reviewed in JOHN S. LEWIS and RONALD G. PRINN, Planets and Their Atmospheres: Origin and Evolution (1984). Aspects of subsequent development are discussed in JAMES C.G. WALKER, Evolution of the Atmosphere (1977); and HEINRICH D. HOLLAND, The Chemical Evolution of the Atmosphere and Oceans (1984). Numerous chapters in J. WILLIAM SCHOPF (ed.), Earth’s Earliest Biosphere: Its Origin and Evolution (1983), discuss biologic controls of atmospheric composition and their development over time. Development of the biogeochemical cycle of carbon and its interactions with the atmosphere are discussed in E.T. SUNDQUIST and W.S. BROECKER (eds.), The Carbon Cycle and Atmospheric CO2: Natural Variations Archean to Present (1985).

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