Hair is composed mainly of the protein keratin, with an inner layer containing melanin that gives our hair its natural colour. An outer layer, called the cuticle, protects the hair. Average rate of hair growth is 1cm a month. Speed of hair growth depends on genetics, age and hormone levels.
Ctrl+Alt+Down Arrow = Turns screen upside-down. Ctrl+Alt+Up Arrow = Turns screen rightside-up. Ctrl+Alt+Right Arrow = Turn screen once, clockwise. Ctrl+Alt+Left Arrow = Turns screen once, counter-clockwise.
To move to the left: 1  Press and hold down the Ctrl key on the keyboard. 2  Press and release the PgUp key on the keyboard. 3  To move another sheet to the left press and release the PgUp key a second time.ome methods-such as the Go To command-can be accessed using keyboard shortcut key combinations, which, at times, can be easier-and quicker-to use than the mouse. The information for the various navigation methods can be found on the following pages: 1  Switching Between Worksheets. 2  Using the Go To Command.