eli5 Why are historical/archaeology structures/evidence underground?

127 viewsOtherPlanetary Science

Earth as a whole is essentiallly a closed system right? Nothing leaves except what we send into space and (presumably) no material enters earth except the some space debris.
Where does all the earth/dirt come from to consistently bury historical structure under ground across the world?

In: Planetary Science

10 Answers

Anonymous 0 Comments

It’s very easy to put dirt on top of something.

It’s a lot lot harder to put dirt underneath something.

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