Answer:
the pyramids do not need to be protected thaught if we keep touching the structure of the pyramids its self over time it'll get shorter
explanation:
because the chemicals that ancient egyptians have between the rocks of the pyramids are dissolving and getting more and more spread over time because of how much it's getting touched by tourists. in fact this already started to happen because the highest pyramid(khufu) has become as tall as the second tallest pyramid (khafrah)
