gharksays...

yea I was a bit confused when they started talking about the Marianas trench. Good vid though, very informative. The part where they showed how we know about the earths polarity flipping every few hundred thousand years was really amazing.

eric3579said:

Thumbnail seems misleading?

nanrodsays...

The thumbnail and the title are totally misleading. I thought this video would be about blue holes like the one in Belize. Instead it's about plate tectonics and the Marianas Trench.

eric3579said:

Thumbnail seems misleading?

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