why do we use <a>

Answer 1

"<a>" tag generally used to represent the link of a page along with "href" attribute.
for ex:
<a href="http://www.facebook.com">Facebook<\a>
in the above example name of the link displayed as "Facebook" in the document.

Answer 2

Suresh explained it greatly!

Answer 3

to put a link in a text

Answer 4

it's a anchor tag .. used for providing link in our web page ...
eg: <a href ="www.Google.com"> Google </a>