There are tons of apps which use Location Services on iPad 2. Now, if you want to enable or disable some of the apps to access location base information then do some settings by following the steps below on your iPad 2.
Enable or Disable Location Services for Apps on iPad 2
In left side bar tap on “Location Services”,
Then in right panel just toggle the ON/OFF slider followed by each app to enable/disable Location Services for that app
Note: You can also enable/disable Location Services at once for all apps just moving the Location Services slider to ON/OFF state.
Note: To save battery on your iPad 2 it is recommended to disable Location Services for apps if its not in use.