When citing an internet document in a speech, it is usually sufficient to introduce it by saying, "as i found on the internet." true or false?

false.

Explanation:

When citing information from a specific document found on the internet during a speech it is strongly recommended that you provide, at least, the actual name of the document, its author, and the site where it was found. This is done in order to achieve clarity, avoid charges of plagiarism, and allow the audience to become familiarized with the source cited so that it can be corroborated if need be.

last one is the answer