how to add profitable ads in adsense
if you block any ads its will effect potential earnings
In your adsense account got to Allow & block ads tab - if there are any ads you don't want, and what kinds you don't want.
Advertiser URL
Let's say you run WidgetUniverse.com and your biggest competitor runs WidgetGalaxy.com. Since your page content is about widgets, WidgetGalaxy ads are automatically matched to your site. To avoid showing your competitor' ads, you can add WidgetGalaxy.com to your list of blocked advertiser URLs, and avoid seeing another ad from them again.
General ad category
You can block ads from general categories such as Apparel, Internet, Real Estate, and Vehicles. General category blocking is available for ads in a limited set of languages, regardless of the language of the site.
Sensitive ad category
You can block ads from categories related to sensitive topics such as Religion, Politics, and References to Sex and Sexuality. Sensitive category blocking is available for ads in a limited set of languages, regardless of the language of the site.