To get AdSense approval, Google's got to see that your website is real offers users what it promises, and sticks around. This is where the key pages come in: About Us, Terms and Conditions, Contact Us, and Privacy Policy.

The About Us sets the scene. It's like the CV of your website - who you are, what you do, basically, your website’s story. This helps Google see that you're legit.

Terms and Conditions are your website's rulebook. It shows that you have guidelines and that Google can trust you to do things right.

The Contact Us page shows you're open to your users, making them comfortable and giving them a good experience, which Google values.

Lastly, your Privacy Policy shows Google and your users that you take data seriously, meaning you're a safe bet.

Together, these pages show Google your site is trustworthy, user-friendly, and follows their policies, increasing your chances of getting that AdSense green light.

Hope this helped.