Well, you can put your mind at ease.  Google has an ad review process that checks the ads they send to your site.  This process ensures that the ads that you serve up are family-friendly and that they comply with Google’s strict editorial guidelines. 

Google Adsense is one of the most user-friendly types of advertising to add to you website, but many people don't spend a lot of time making it effective. In this article, I'll share tips that I've found helpful and link you to additional resources.