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carbon dioxide and water vapour are found only up to 90 km from the surface of the earth.
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Atmosphere: Role, Structure & Composition | PMF IAS
f about 80 kilometres. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km. Similarly, <span>carbon dioxide and water vapour are found only up to 90 km from the surface of the earth. Nitrogen and oxygen make up nearly 99% of the clean, dry air. The remaining gases are mostly inert and constitute about 1% of the atmosphere. Besides these gases, large quantities of wa


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