Music appreciation some singers, especially sopranos, are often given what title because of their egoistic tendencies? a. profundo b. diva c. coloratura d. star

The best answer is D. (Star).

Soprano singers with egotistic tendencies (i.e. big personalities)  are often called stars. Diva is a female vocalist, Coloratura is a form of operatic singing, and Profundo is not a relevant term.

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art. 

Depends on which book your talking about or movie.