Earth's formation and atmosphere, and ocean formation on early Earth are significant topics.
Earth's Formation: Earth initially too hot for liquid water. Water condensed from vapor and space objects, forming oceans. Continents shifted, changing ocean sizes.
Earth's Atmosphere: Formed as Earth cooled, trapping gases emitted during volcanic activity.
Ocean Formation: Oceans formed from condensed water vapor as Earth cooled, shaping the planet's features.
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