Okay, so I know it took me a long time, but I made Party Poison from My Chemical Romance XD

The paintings in the lascaux cave were discovered by who?

How did brunelleschi solve his problem with the dome of the florence cathedral? a. he created an outer support shell. b. he created many layers of support within the dome. c. he created external supports for the dome. d. all of the above

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.