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Seawater contains gold

One study found about one gram of gold in every 100 million metric tons of ocean water.

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The concentration is on the order of parts per trillion. There is undissolved gold in and on the seafloor too, but no cost-effective way to recover it.

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Coast redwoods can grow 367 feet tall

California's coast redwoods may grow to 367 feet, about the height of a 35-story skyscraper.

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About half of Earth's oxygen comes from the ocean

About half of Earth's oxygen comes from the ocean.

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Earth is not a perfect sphere

Earth bulges at the equator because of the centrifugal force created by its constant rotation.

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