What specific structural changes do you expect to occur if we don’t do anything to protect the pyramids?

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)

b) that he was not a free man

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.