How can you remove an application on facebook?

[Tasha]

Blocking prevents you from getting requests to add the application

You can either turn off the notifications for it, so you have the choice to still see people's quizzes when you want without getting notifications constantly or remove the application completely.

To turn off the notifications go to the notifications tab in your inbox and uncheck the box for how well do you know me

To remove it, go to the applications at the bottom and click edit applications. Then click the x next to how well do you know me