Why is form essential to art

Form is also an element of art. As it's most basic, a form is a three dimensional geometric figure as opposed to shape which is two dimensional or flat. In a broader sense, form in art means the whole of a piece's visible elements and the way those elements are united.

Explanation:

the ingredients listed on a label are listed by amount. the ingredient there is the most of is listed first and it trickles down to the ingredient there is the least of.