If you mean dispersion it mean splitting light into 7 parts.
They are used to create artificial rainbow effects
Answer: be brief to get interest but not narrowed, there is introduction ( first paragraph) and body (as much of paragraphs you wanna write max: 4 to 5) and lastly the conclusion where you make a small summary of the writing
Personification
this is achieved by giving an inanimate object the characters and behaviours of humans.
In this case, the wind is given the behavior of whispering.
