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Water vapour h2o - PowerPoint PPT Presentation

The Atmosphere Throughout Time

The Atmosphere Throughout Time. The Atmosphere before life. Very different from our current atmosphere. Consisted mainly of: Ammonia (NH 3 ) Carbon Dioxide(CO 2 ) Methane(CH 4 ) Water Vapour(H 2 O). NO OXYGEN!?!?. U.V. radiation from the sun caused CHEMICAL REACTIONS that lead to LIFE

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Water vapour h2o - PowerPoint PPT Presentation

The Atmosphere Throughout Time