WHAT IS ADSENSE?
AdSense is a program run by Google through which website or Youtube a publisher in the Google network of content serve text, images, video or interactive media ads or advertisement are served according to the content and audience
The ads or advertisement is administered, sorted and maintained by Google. The initial release was on 18 June 2003

HOW TO GET ADSENSE APPROVAL FOR WEBSITE
For a website/blog you need to make all the necessary contents such as About us, Privacy policy, Terms and Conditions ( Terms of use ) and Disclaimer are the most important pages you need to make or create
There are sites where you can make them for free Privacy Policy Generator and terms feed but it will cost you some money for a Business. Just for your information, it will be linked back to their website
As for your About or About us page it needs a personal touch what I mean is every website/blog is not created for the same reason. If you or your team can create it or get help from others who can be it through paid or favor
HOW TO QUALIFY FOR ADSENSE ON BLOGGER
If you use Blogspot subdomain on blogger which is free. You need to create at least 20 to 30 posts or article which will be helpful to a certain specific audience or pick a niche to build your website/blog around it. In time, the earning option will be activated.
Just don’t quit too soon…
It will still take months and that is still considered short
HOW TO GET ADSENSE APPROVAL FOR YOUTUBE
In Youtube, there is restriction now for you to be able to monetize or run ads on your channel or content. The requirements are 4,000 hours or 240,000 minutes of watch time with subscribers or follower of 1,000 minimum in 1 year (12 months)
IS MY WEBSITE ELIGIBLE FOR ADSENSE
Yes, not every website/blog will be eligible for AdSense if it’s deemed negative, non-family safe or potentially offensive. The contents may fall under these topics or the Google system detects a reason for the advertiser might not want their ads to that site.
There are a lot of them which is not suitable for Google AdSense I guess you can just figure it out if I say it needs to be family-oriented or suitable for any age group young and old. You can learn or understand more from this page of Google support
HOW MUCH TRAFFIC DO YOU NEED FOR ADSENSE
There is no minimum traffic requirement for AdSense. You need to have a decent amount of views regularly or the more the merrier. Just need to promote to places where your content will relevant to get that initial traffic but don’t spam it.
HOW TO CREATE MULTIPLE ADSENSE ACCOUNTS
Let me get straight to the point. If you are planning to do it by using the same name, address, Bank account, etc. it will not work because one identity or person is allowed to have one
A possibility I can think of is if you are someone who has dual, triple, etc. Citizenship in multiple countries with different National identity cards, Address, Bank account, etc. for each of them then there might be a possibility.
Personally, I don’t have the resource to prove it nor do I know anyone who does
The best option would be you can use your family, relatives, etc. details to create multiple AdSense accounts and you will have to use the payments information which is in their respective names