If Lucy Hale (star of Pretty Little Liars) appears on Good Morning America and talks about her upcoming album and how great it is going to be, the viewing audience is all the more likely to demand access to it. This illustrates the "desire" element of:

This illustrates the "desire" element of "I want it".

Explanation:

Desire is an emotion which an individual experiences when he/she longs for something or really wants it, it's a form of craving.

In this case, if Lucy Hale talks about her album it is most likely that the audience will demand access to it, they begin to crave it. The demanding access to it is the key aspect as to why the desire element is "I want it" because the audience is not simply accepting that the album is out there or that they know what it is, they want it.

answer; environmental science;