Mystery #2Tier 2-3space / gravity
Why does the Moon make the sea rise and fall?
Twice a day the sea creeps far up the beach and then drains away again, like clockwork. And somehow it's tied to the Moon, a quarter of a million miles away. How can a distant Moon move whole oceans?
Your guess
What's your hunch: how does the faraway Moon pull the seas up and down?
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