Explanation:

The article role is NOT an ARIA Landmark role because it is a document structure role. ARIA Landmark roles include form, navigation, main, banner, contentinfo, and application. Landmarks define major page regions for navigation while article defines content structure within those regions.

Explanation:

Add size equals value attribute to set visible options in selection lists. This controls dropdown display height.

Explanation:

The send type is NOT a valid HTML button type. Valid button types include submit (submits forms), reset (clears form data), and button (generic clickable button with no default behavior). The type attribute defines the button functionality within forms and how it interacts with form data.

Explanation:

The purpose of a div tag is to group blocks of elements on a page together for styling or layout purposes. It creates a container that can hold multiple elements and apply CSS styles collectively. Divs are fundamental building blocks for structuring web pages and creating complex layouts.

Explanation:

The tag is not a valid HTML tag. There's no HTML element with this name in any HTML specification. Valid tags include , (though deprecated), and which are all recognized by browsers.

Explanation:

No, the p tag does not allow nesting block-level elements according to HTML specifications. Browsers automatically close the p tag when encountering block elements, even if not explicitly closed. Paragraphs can only contain inline content (phrasing content), maintaining proper document structure and preventing rendering issues.

Explanation:

The border-radius property adds rounded borders to list items. It creates curved corners on element borders.

Explanation:

The correct syntax is a href equals home.html style equals cursor: pointer. The style attribute uses CSS property:value pairs with cursor:pointer to show pointer cursor on hover.

Explanation:

Charset is NOT a legal name value - it is a separate attribute. Valid name values include viewport, generator, and author.

Explanation:

A page box is composed of a page area containing document content. This defines printable regions for paged media.

Explanation:

The tag defines emphasized text, typically displayed in italics by browsers. It provides semantic meaning indicating that the content has stress emphasis, which is important for screen readers and SEO. Unlike which only italicizes, carries semantic meaning about the content's importance.

Explanation:

Use

to start a numbered list with regular numerals (1, 2, 3...). The type attribute controls the numbering style: '1' for numbers, 'A' for uppercase letters, 'a' for lowercase letters, 'I' for uppercase Roman numerals, and 'i' for lowercase Roman numerals.

Explanation:

The LINK tag is used to include an external stylesheet in HTML. It is placed in the head section with rel equals stylesheet and href pointing to the CSS file. This method separates presentation from structure, allowing one stylesheet to style multiple pages and improving maintainability and load performance.

Explanation:

The REFRESH meta tag refreshes the page automatically after a specified time, optionally redirecting to a different URL. Syntax: meta http-equiv equals refresh content equals 5 semicolon url equals newpage.html refreshes after 5 seconds. This technique is useful for redirects or auto-updating content, though JavaScript is often preferred for better control.

Explanation:

The align attribute adjusts horizontal alignment of cell content within a table cell, positioning text or content left, center, or right. Though this attribute works, it's deprecated in HTML5. Modern practice uses CSS text-align property for more flexible and maintainable cell content alignment.

Explanation:

The correct syntax is smarterer. The href attribute specifies the destination URL, and the text between tags becomes the clickable link. This standard anchor tag syntax creates functional hyperlinks that navigate to specified web addresses when clicked.

Explanation:

Another way to insert special symbols is to use a character entity reference. Entity references like ampersand copy for copyright display special characters.

Explanation:

The th tag is used for table header cells, typically displaying bold and centered text. It provides semantic meaning distinguishing headers from data cells.

Explanation:

HTML stands for Hyper Text Markup Language, the standard language for creating web pages and applications. It uses tags to structure content including headings, paragraphs, links, images, and other elements. HTML provides the foundation and structure for all websites on the internet.

Explanation:

Use meta tag with charset UTF-8 for HTML5 or Content-Type with ISO-8859-1 for HTML4. Character encoding ensures proper display of special characters.

Explanation:

HTML stands for Hyper Text Markup Language, the standard language for creating web pages. 'Hyper Text' refers to text with links to other text, while 'Markup Language' means it uses tags to structure and format content. HTML is the foundation of all websites and web applications.

Explanation:

Enter border-spacing: 3px to set 3-pixel distance between cells. This CSS property controls table cell spacing.

Explanation:

The valign attribute vertically aligns the contents of a table cell, positioning content at the top, middle, or bottom. Though this attribute works, it is deprecated in HTML5. Modern practice uses CSS vertical-align property for more flexible and maintainable cell content alignment with better styling options.

Explanation:

Use

) or unordered (
) lists. Each list item is wrapped in its own
• element, creating distinct entries. The browser automatically adds bullets (unordered) or numbers (ordered) before each list item.

Explanation:

The tag notifies the browser that this is an HTML document and serves as the root container for all other elements. It signals where HTML content begins and ends, encompassing both and sections. This tag is essential for browsers to properly interpret and render the document as HTML.

Explanation:

Another way to specify width is to use the size attribute for certain form elements. Though for most elements, use width attribute or CSS.

Explanation:

Use the entity name ® to insert a registered trademark symbol in HTML. HTML entities represent special symbols that cannot be typed directly. The entity begins with & and ends with semicolon, ensuring the symbol displays correctly across all browsers and text encodings.

Explanation:

A deprecated element is one that has been removed from the latest standards and may become obsolete in future versions. While deprecated elements still work for backward compatibility, developers should avoid using them and adopt modern alternatives. Browsers may eventually drop support for deprecated features entirely.

Explanation:

FALSE - tags can go anywhere in an HTML document, not just in the <head> section. Scripts can be placed in <head>, <body>, or at the end of <body> depending on when they need to execute. Modern practice often places scripts at the end of body for better page load performance.

Explanation:

The 'cellspacing' attribute is used to define the amount of space between table cells. It controls the gap between adjacent cells in pixels. This attribute helps in creating visual separation between table data for better readability.

Explanation:

The em tag makes text italic, indicating emphasized content with semantic meaning. It differs from i tag by carrying importance for screen readers and SEO.

Explanation:

Angle brackets with element names are examples of HTML tags. Tags define the structure and content of web pages.

Explanation:

An ordered list is represented using the

tag (ordered list) in HTML. List items are added using
1. tags within the
   container. The browser automatically numbers each list item sequentially, creating a numbered list structure.

Explanation:

Use ol start equals three to start an ordered list at the count of 3. The start attribute specifies the beginning number for list numbering. This is useful when continuing a numbered list after interrupting content or when you need a list to begin at a specific number for contextual reasons.

Explanation:

The three list types in HTML are Unordered lists (

), Ordered lists (
), and Definition lists (

). Unordered lists display bullet points, ordered lists show numbered items, and definition lists pair terms with their descriptions. Each serves different organizational purposes in web content.

Explanation:

This creates a DIV element with an id attribute named 'text' and aligns its content to the right side. The id provides a unique identifier for styling or JavaScript manipulation. The align attribute (though deprecated) positions the content horizontally within the DIV container.

Explanation:

The URL for phone links is tel:phone format. The tel protocol triggers phone dialing on mobile devices.

Explanation:

FALSE because images do not use ahref attribute. To create an image link, nest img inside an anchor tag: a href equals URL containing img src equals image.jpg. The anchor tag provides the link while the img tag displays the image making the entire image clickable.

Explanation:

The image tag is an empty HTML tag requiring no closing tag. Self-closing tags like img and br have no content.

Explanation:

XHTML 1.0 is the most widely supported version. It reformulated HTML 4 as XML with stricter syntax.

Explanation:

All of these - , , and - are NOT valid HTML elements. These tags don't exist in any HTML specification and browsers won't recognize them. Valid HTML elements are defined by W3C standards and include tags like , ,

Explanation:

The

heading element is defined as the most important and usually displays the largest text by default. It represents the main topic or title of the page in the document hierarchy. Most pages should have only one h1 tag for proper semantic structure and SEO.

Explanation:

_son is NOT a valid predefined target for links in HTML. The valid predefined targets are _blank (new window), _self (same frame), _parent (parent frame), and _top (full window). These special keywords control where linked documents open in relation to frames and windows.

Explanation:

The label is associated with input with id equals first_name using the for attribute matched to the input id attribute. This explicit association improves accessibility by connecting label text to form controls, allowing screen readers to announce labels properly and enabling label-clicking to focus inputs.

Explanation:

All block elements have a default width of 100 percent or full available width. They expand to fill their container horizontally.

Explanation:

A personal agent can be used to automatically fill out web forms. These intelligent assistants automate repetitive tasks for users.

Explanation:

The default method of a form element if not specified is GET, which appends form data to the URL as query parameters. GET is visible in the address bar and has size limitations, making it suitable for searches but not sensitive data. For data submission, explicitly using POST is recommended for security and capacity.

Explanation:

A META tag is placed in the HEAD section of an HTML document. Meta tags provide metadata about the webpage like character encoding, description, keywords, and viewport settings. They don't display visible content but affect how browsers and search engines process the page.

Explanation:

The (teletype text) element is NOT a table element - it's used for monospace text formatting. Valid table elements include , (rows), , , and . The tt tag is for typography, not table structure. (data cells), (header cells),

Explanation:

The proper HTML5 doctype declaration is - simple and case-insensitive. This must appear at the very beginning of an HTML document before the tag. The simplified HTML5 doctype replaced the complex declarations of earlier HTML versions, making it easier to remember and use.