The United States Geological Survey estimates that (as of 2005, the most recent year for which data is available) we withdraw 410 billion gallons of water a day, including both fresh and saline water. Most (80%) of these withdrawals go to thermoelectric power plants (for cooling) and agriculture (for watering crops).
Level 4 is the hair color level that is represented as dark brown. It is one of the most common natural hair colors and also very commonly found in hair dye. Level 4 is also common in red or...
Not for brown hair/brunettes! I have a subtle light ash brown ombre (level 5) with blond highlights (level 8) salon dye job that I did 6 months ago with about 2-3 inches of growth of virgin hair. My natural hair color is dark brown (level 3).