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If all the world's water were a sphere, it'd be about as wide as Alaska
Next to it, a much smaller sphere shows the world's liquid fresh water. This image shows blue spheres representing relative amounts of Earth's water in comparison to the size of the Earth.
Water stored in the mantle for millions of years may be linked to continental volcanism
The mantle transition zone (MTZ), which occurs 410–670 kilometers below Earth's surface, may store several oceans' worth of water. This water, which is carried to such depths by subducting tectonic ...
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Water found outside the Earth: It was created right at the beginning of time
Scientists reveal water formed soon after the first supernova explosions, suggesting life-friendly conditions existed earlier ...