World used to be covered in water?

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I was on a hike and read a plaque that said this area used to be completely covered by water. My question is, where did all that water go? Just absorbed into the ground? Evaporated?

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Anonymous 0 Comments

This depends a lot on where you are, but in certain parts of the world the ice sheet during last ice age was several kilometers thick. All that mass of ice pushed ground down, over a kilometer in some places. After the ice age, the ground begun to rebounce, and it’s still raising to this day.

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