What is the most common way to perform searches in a search engine?

answers:
using underlined words
using key words
using hidden words
using unusual words

Under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

What are listed in the vertical columns across the top of the event editor? a. file names b. conditions c. check marks d. action types

How should you specify box sizes on a web page if you want the boxes to vary according to the font size of the text they contain? a. in pixels b. in inches c. as percentages d. in em units