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...
Hair color is assigned a Level number ranging from1 to 10 with 1 being black and 10 lightest blonde. In other words, black reflects very little light and lightest blonde reflects the greatest amount of light. A level 10 blonde would be 'two steps lighter' than a level 8 blonde.