What term is this This is a piece of information that is used to support a main idea.

Detail

Explanation:

Term Detail defines a piece of information that is used in order to back up the idea or argument. It is a small, individual fact or addition that adds up the information about the complete idea or picture. In writing, details are added up to build up a full narrative of the story, characters, or settings. The details can be informational, illustrative, or descriptive. Details in writing are what make the piece more convincing and lifelike, as well as more interesting to read.

on the first day of new student week, amber revealed to her roommate that she is a lesbian. this is an example of self-disclosure.

the values of the selma marchers was to bring   their ability to vote into law. mlk was not hat march, which was protesting toward lbj