If I make a blog on wordpress and hosting it on some webhost, can I add adsense ads? If so how I can add adsense ads on my wordpress blog? Good answers will definitely be appreciated.
Yes you can add Adsense ads. Here's a plugin that you can download and install to use: http://wordpress.org/extend/plugins/adsense-manager/
Yes you can. If you use your own hosting account, you can either add it on the sidebar using widgets or you can get a wordpress plugin to add it for you. I use adsense manager plugin but there are others. You can see mine on the blog next to my user name. To add it to the footer or header, I believe you have to add it to the approbate file either header or footer.
There are tons of plugins dedicated to integrate adsense in wordpress. Yes you can have adsense or any other ads on a self hosted wordpress blog. Check out the plugins here if you want to, http://mashable.com/2007/09/04/wordpress-adsense/ and also you can directly edit the pages or posts to include ads if you want to.