Naked Science altyazı (122907)

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Dive to the sea floor,

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and you enter an incredible world.

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It's home to vast volcanoes

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temperatures hot enough to melt lead

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the longest-living animals on the planet

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And undersea earthquakes so powerful,

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they send deadly waves smashing
into land thousands of miles away.

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Now Naked Science takes you
on a journey from the ocean's surface

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to its farthest depth

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on a quest to discover what
lies at the bottom of the sea?

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The Earth:

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the oceans dominate our planet.

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Nearly two-thirds of the Earth's surface
is covered by sea-water

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140 million square miles

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353 trillion, trillion gallons of water

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But if we drain all this water

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an astonishing landscape appears

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As many as 100,000 volcanoes
called seamounts

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The longest mountain range
on the planet

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and 22 deep ocean trenches

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Some plunge deeper than
Mount Everest is high

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The ocean floor is
one of the most geologically
active regions on the planet

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To understand what creates it,