Where did all the water on earth come from?

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Where did all the water on earth come from?

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Anonymous 0 Comments

It was there for a large part already during the formation of the planet, and later it came from asteroids and comets (for a minor part of it).

Source: https://en.m.wikipedia.org/wiki/Origin_of_water_on_Earth#Geochemical_analysis_of_water_in_the_Solar_System

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