There are resources out there that show you industries with the highest CPC. You can narrow them down, and use the Keyword planner to figure out ones that aren't outrageously competitive. Choose a topic you are truly passionate about, and write phenomenal content. Then do link outreach to folks in your space or an adjacent space to see if they'll link to your post/resource. I'd suggest SEO tools like Ahrefs or Buzzsumo for this otherwise it's hard to know where to even start.
For Google adsense adjustment first you have to write above 10 unique contents. Then you have to apply for it. Administration will check it and then if it okay then they counted it. If it would not then you have to increase your contents. All contents must be related to your site and you also have to attach images with the contents.
!!! Unexpected question. I was asked it in a forum then they advised me to do it so I'm telling these. I also did it and got positive feedback.
Dear, Agent000. I told it from my previous experience. I'm again researching about it. After few hours I'll must come back in these topic. Bye...
so how many adsense accounts have got got approved with: You really should not be giving such bad advice.
Exactly! you have to find your own... no one can tell you whats better for you and whats not! it all depends upon your own expertise, experience and interest
I want to say that SEMWORLD2015 is right as he said from his experience. And Mr Agent000, you can not say that 'Not even close to being true.' as you don't know about his experience. Even, when you said "how many adsense accounts have got got approved with:" (One person can get only one Adsese account then how to you say that, people dealing with one Adsense and tell his experience on it, this the reality) . or "You really should not be giving such bad advice." (at least you should show respect other opinion, as no one can say what is right way as Google only give couple of rules and procedures but when we use our website, a lot of process and method come to our mind) We do not know how much articles is ideal for adsense. Can you say Mr. Agent000?? Mr SEMWORLD2015 only shows his assumption. We should have to give specific advice as per our experience, don't tell any useless suggestions where we go in confusion.
SEMworld2015 has NO experiences in this. They have no idea what they are talking about. They are giving bad and misleading advice. BTW, I am a TC in Google's own adsense help forum.
I agree with the others who have said blogging should never be done with the intention to earn. You will invest your time for all the wrong reasons. This is why being a blogger as a career option is so low. People start them as hobbies and then "happen" to earn from them. Most never earn anything.