What feature allows students to add comments and notes under links on a shared Google Doc?

The feature that allows students to add comments and notes under links on a shared Google Doc is the Commenting System. This functionality enables users to interact with the document by leaving feedback, asking questions, or providing additional insights directly next to specific content, including hyperlinks. It fosters collaboration among users, as everyone can see and respond to each other's comments, creating an engaging learning environment.

The Commenting System enhances communication, allowing for real-time discussions about the document's content and any linked resources. Users can also resolve comments once the discussion is complete, which helps keep the document organized and focused on the most pertinent points.

In contrast, hyperlinking simply refers to embedding URLs within the document, while Suggestion Mode enables users to make edits that can be accepted or rejected by the owner. Version History tracks changes made to the document over time but does not facilitate real-time conversation or commenting.