Why is anti spyware software important to my online security?

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

Laire writes a letter to her grandmother, in which she describes an amusement park she visited last week. she adds pictures of that place in her letter. which feature of a word processing program will claire to remove unwanted parts of the pictures?

Facial expressions and gestures are examples of messages.