It covers 70% of the Earth’s surface and is one of the most common substances on Earth, and it makes up 97% of the water on the planet. Despite being so common, it is also one of the most complex substances you’ll ever encounter. You can swim and surf in it, but you can’t drink it. Learn more about seawater, and why there is a whole lot more to it than you probably realize, on this episode of Everything Everywhere Daily.
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