Remember that, in a pure hydrogen economy, the electrical generating capacity will have to approximately double because all of the energy for transportation that currently comes from oil will have to be replaced with electrically generated hydrogen. So the number of power plants will double, and all of the fossil fuel plants will be replaced.
The iPhone will reboot. Once it turns on, the default network settings will be restored. The Apple iPhone 3GS has many reset options. Wiping the network settings will reset all the current network settings to default. The Apple iPhone 3GS has many reset options.  Please let us know how we can improve this support content by leaving your comments below.
Reset Mobile Data Usage Statistics on an iPhone 7. These steps were performed on an iPhone 7 Plus, in iOS 10.2. These same steps will work for most other versions of iOS as well. Step 1: Tap the Settings icon. Step 2: Select the Cellular option. Step 3: Scroll to the bottom of the screen and touch the Reset Statistics button. Step 4: Tap the red Reset Statistics button to confirm that you want to reset your stats. Additional notes about resetting your iPhone cellular data usage statistics. The amount of data shown on this screen only indicates data used over a cellular network. It does not include any data used over Wi-Fi networks.