This scientist discovered that when light passes through a prism it splits into the seven colors that we now know to be the colors of the rainbow.

who is this scientist?

No, it was beethoven

The answer here would be "work ethic." 

Hi, you for posting your question here at

every detail in an artist's work conveys a message. from the palette of paint colors chosen, to the strokes of the brush, to the quality of canvass and the synergy of the whole art. bright colors may entail vibrant and positive feelings while dark colors convey gloom or sorrow.