what the Nazca Lines are made of and why they haven’t eroded or blown away or gotten covered over time

Question

what the Nazca Lines are made of and why they haven’t eroded or blown away or gotten covered over time

In: 143

Answer 1

I’m no expert, but from what I know the Nazca lines are areas of desert where the dark dirt has been taken off to show the lighter dirt under it. Don’t know about erosion or being covered, I did see quite a bit of bushes and other things growing over the ones which have not been “restored.”