Please i need more light in this two _<a> and link i don't really understand them

Question

A clear explanation of <a> and link and href with <a> and link with href

Answer 1

<a> is used to link to anywhere in the page or another page or another site
What
<a href="#end">Next Line</a>

While
<link> is used to add external stylesheet
Eg
<link rel="stylesheet" href="style.css">
Link don't have ending tag while a have