Desperately need on homework. two simple english questions no explanation required worth 25 points plus 13 for brainliest. must answer both.

what is the purpose of text features?
they readers understand what they should learn from the text.
they provide legal documentation to researchers who cite the sources.
they work to demonstrate factual evidence of ancient historical statistics.
they allow readers to make up their own minds about what really happened.

what is a footnote?
an online link to another website
an offline link to more information
a note to assist the musical learners
a description of the text's citations