Many of the Nazca Lines remain as they were created even though they were built sometime around 400 to 650 CE. Why are these artforms able to remain intact after all of this time?

Awork in three dimensions which has height, breadth and depth.

Suppose that you are in a room with 3 doors and a crack in the ceiling for light. that is all. the doors each have a sign on them that says what there is behind them. door #1. a pool of corrosive acid. door #2. a crocodile that hasn't eaten in 8 months. door #3. a solar "oven". a giant lens that focuses all the sunlight at the entrance of the door. you must choose a door, which door do you choose?

Explain why a work of art is considered so valuable and who is affected when a work of art is stolen