How do I find out what I have saved in the cloud
I Have a iPhone 4, and I have stuff on my cloud account, how do I find out what's in it and how do I cold my account out?
iPhone 4, iOS 9.0.2
iCloud contents on an iPhone, can be seen through the relevant apps. i.e If you have contacts synced to iCloud, they would be accessible through the Contacts App.
Photos would appear on the Photos App as part of the iCloud Photo Library.
etc...
You can also go on your iPhone to Settings->iCloud and see what is being synced to it.
Additionally, you can go to http://icloud.com from a computer, and log in with your Apple ID for another way of seeing what is on there.
You cannot close your iCloud account. Only Apple can do so, and only if a good reason exists. Why do you want to close it down?