Mysteries of the Oceans
The oceans cover 70 percent of the planet, but there is a lot below the deep waters that still mystifies us. Take the ocean floor. There’s still about 95 percent of the ocean’s bottom that remains unseen by humans. We actually have a better idea of what some planets look like. Host Hank Green unravels this dilemma, as well as six other mysterious ocean topics in this episode of SciShow.
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