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Comment: 17:48 - 18:13 (00:25)
Source: Annenberg/CPB Resources - Earth Revealed - 2. The Restless Planet
Keywords: water, ocean

Our transcription: Earth's distance from the sun and the presence of an atmosphere, which kept surface temperatures warm, allowed water to collect in a liquid state, submerging the young planet's raw basaltic lowlands.
No other planet combines all the factors required for the existence of a watery ocean.

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