You can use iTunes on Windows or OS X to back up the iPhone to your computer. If you want to delete everything on your iPhone and start over again, here's how. 1. Open Settings. 2. Tap General. 3. Tap Reset. Reset is located at the bottom of the General settings screen.4. Tap Erase All Content and Settings.If your phone is protected with a passcode, you will be prompted to enter it.ou can use iTunes on Windows or OS X to back up the iPhone to your computer. If you want to delete everything on your iPhone and start over again, here's how. 1. Open Settings. 2. Tap General. 3. Tap Reset. Reset is located at the bottom of the General settings screen.
Why is the sky blue? When the sun's light reaches the Earth's atmosphere it is scattered, or deflected, by the tiny molecules of gas (mostly nitrogen and oxygen) in the air. Because these molecules are much smaller than the wavelength of visible light, the amount of scattering depends on the wavelength.
THE COLOUR BLUE. BLUE: The colour of the sky and the ocean, blue is one of the most popular colours. It causes the opposite reaction as red. Peaceful, tranquil blue causes the body to produce calming chemicals, so it is often used in bedrooms. Blue can also be cold and depressing.