On a webpage, Google displays the "Ads" on which criteria?

Thank you in advance for your answers.

 

AdSense for content automatically crawls the content of your pages and delivers ads (you can choose both text or image ads) that are relevant to your audience and your site content—ads so well-matched, in fact, that your readers will actually find them useful

 

So Google will display the Ads depending on what exact words I'll write?

 

Yes.The ads will be shown depending upon the keywords and content you have optimized the page for.

 

Title tags, Header tags, content, links coming in and going out, domain and subdomains and availability of ads are all factors for determining what ads will be placed on your pages.

 

Thanks for the info.