[Yo Ken]

This is an issue with tablets and cell phones. It has to do with your play store, where you would get apps. Downloading certain apps can cause these ads to pop up.

You would need to remove the app, but that may be a problem becuase you might not know which app it is. You can also get apps to block these pop ups. Just type in pop up blocker in the play store on your android phone or the app store on your iphone.