Defines the ocean basin as a tectonic depression and introduces the concept of containment through physical boundaries rather than chemical or magical means.
Learn MotionWhy Oceans Don't Drain Into the Ground
Introduction: The Ocean Basin as a Container
The Ocean as a Physical Depression
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To understand why oceans don't drain, we must first see them as physical containers. An ocean basin is a deep depression in the Earth's crust, formed by tectonic activity. Just like a bathtub holds water within its ceramic walls, the ocean basin holds water within its geological boundaries. This chapter establishes that containment is primarily a structural feature of our planet.
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