Question 3: What are the components of a noun group?
If noun groups can have more than word, what do those different words do?
Your body is a thing that contains a heart, lungs, brain and so on—each with its own job. A noun group is the same: different words inside the noun group have different jobs, and we can give these jobs names.
Look at Tristan's mystery powder in the snippet below: each of the words does a specific job: