Google Adsense is a fast and absolutely ridiculously easy way for people with websites of all types and sizes to put up and display relevant Google ads on the content pages of their site and earn money.

Why would anyone click on Google Adsense ads?

Simple. Because the Google Adsense ads relate to the interest of the visitors.

For example, if you run a website about pets and you add some Google Adsense ads into your website, your visitors will be interested to click those ads because the ads are related to pets.