The check box control is created using the _____ element.

The ____ attribute can be used to identify where to download a plug-in.

If an element contains 12pt text, a length of 2em equals ____.

_____ units express font size according to the size of other objects within a web page.

Hypertext markup language (html) version _____ added interactive elements, including web forms.

The uniform resource locator (url) for a phone link is _____.

True or False: Checkboxes are used to select multiple choices whereas with radio boxes only one choice can be selected when the submit button is clicked.

Which of the following sizes the width of a table to half of its containing object?

Which of the following is not a valid html tag?

Which of the following is not a valid HTML element tag?

Which attribute of the HTML <A> tag specifies the address of the destination link?