The input HTML element is used to create interactive controls for user input, such as text fields, checkboxes, and radio buttons, enabling data collection and interaction.

The img HTML element is used to embed images in a webpage, requiring a source URL and supporting attributes like alt text for accessibility.

The iframe HTML element is used to embed another HTML page within the current page, allowing for the integration of external content like videos, maps, or other web pages.

The i HTML element is used to italicize text for stylistic purposes, often conveying a different tone or mood, such as a technical term or a thought.

The html HTML element represents the root of an HTML document, encompassing all other elements and defining the document type and language.

The hr HTML element is used to represent a thematic break between paragraph-level elements, often rendered as a horizontal line to visually separate content sections.