Hi friends! Please help me on blogging

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Hi all! I am new to blogging and have no knowledge about blogging. I have created a blog recently, say two days back, and at the same time submitted it to google adsense, Now, they have rejected my blog. Why do you think they have rejected my blog? and what are the rules for me to submit my blog to google adsense and other money earning programs? How can I generate traffic and how can I host my blog? How can I make it available when someone searches for it in google or yahoo. Please help me out with tips for these. Thanks