use 100% your own original content , promote the site and get it indexed by google and apply for adsense.
Not many. Just have a unique site with a few pages, your own domain and hosting not a blogger site and you should be good. Of course make sure you read there TOS to make sure you dont have bad content on the site like gambling,drug, adult or vilant content.
I think you should go to terms and condition of adsense.. read it carefully.. make a nice blog and put adsense.. you are ready!!
read the terms of service. there is a lot of good information in there and everyone who uses adsense should read it.
Well, you just need a good blog with unique content as well as some decent traffic. They will accept you once you follow these two things. - Digital -
If you are in India or China, your site or blog should be at least six months old too. https://www.google.com/adsense/support/bin/answer.py?hl=en&answer=9724 Read the program policies carefully and be sure you understand them. https://www.google.com/adsense/support/bin/topic.py?topic=8423 Read the Google Webmaster guidelines, which you also have to follow: http://www.google.com/support/webmasters/bin/answer.py?answer=35769
semi established website with quality unique content and it should not be in the category of sex, gambling and other vices like smoking. A good website design is a major +