What did movie studios hope to gain by building soundstages after the first two decades of filmmaking?

In a paragraph of no less than 125 words, explain the single most important factor involved in advancing american classical music in the twentieth century.

I'm dead lol: a professor was traveling by boat. on his way he asked the sailor: “do you know biology, ecology, zoology, geography, physiology? the sailor said no to all his questions. professor: what the hell do you know on earth. you will die of illiteracy. after a while the boat started sinking. the sailor asked the professor, do you know swiminology & escapology from sharkology? the professor said no. sailor: “well, sharkology & crocodilogy will eat your assology, headology & you will dieology because of your mouthology.

What caused many of the moai at easter island to be destroyed?