What does the milk represent in the experiment?

Embellishments area. ornamental tones not printed in the music that seventeenth- and eighteenth-century performers were expected to add to the melody.b. music created at the same time it is performed.c. notes printed in the music that embellish the melodyd. obsolete in contemporary performances

This medium typically is made of graphite, a crystalline form of carbon:

Urgent50 points ! what would be some of the drawbacks of using a specific dramatic structure such as freytag's pyramid?