There are several reasons why application is rejected by apple store.Apple will never compromise with quality this is one of the most important reason for more reason in detail please check this app-store-guidelines.
Category UIScrollView
Day-11 for iOS development
Click here for Lecture 11 which includes Core Location and MapKit.
Day-10 for iOS Development
click here for Lecture 10 which includes UITableView,UITableViewCell and UITableViewController.
Day-9 for iOS Development
Click here for Lecture 9 Which includes UIImageView,UIWebView and UIScrollView.