How to Display Google Adsense Ads on Your WordPress Website
A Google product that provides a way for website publishers of all sizes to earn money by displaying targeted Google ads on their websites.
If the website publisher is approved to show ads, Google gives them a piece of code to put on their site. The publisher chooses where to place ads and then earns money when visitors click on (or view, in some cases) the ads.
Your ads may show on AdSense sites when you run a Display Network campaign.
->Log into your WordPress admin dashboard. Go to Appearance > Editor:
->select your current theme from the drop-down menu Select theme to edit in the top right corner. Then, choose Theme Header (header.php) template from the list on the right.
->Find the <head> tag and paste the verification code from Google AdSense right after it.
-> And Click Save the changes.