What are two purposes of subheadings

The main purpose of subheadings are:

They stand out because of their size and attract attention.

The scanner will stop to read them and continue scanning until the next subhead which they'll then read.

they capture attention to keep them reading down the page,and it tells you what your gonna read before you read the page.

Explanation:

hope this helps;)

the dictionary definition of ubiquitous is "present, appearing, or found everywhere".

what passage could you provide the passage.