A hollow object that amplifies sound waves is called a what?

Why did ponyboy fool around instead of shooting when hunting with his father? why does pony not tell sally? how do u think this shows ponyboy a character as being diffrent from dally? the outsiders

How were objects painted before cubism

Which type of notes dip or blend by a quarter or half step and swoop up to higher pitches to make jazz sound more like a human voice