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...
Summary. There are nine possible shades between blond and black hair. There are three possible states of red hair (no, yes, very much so). That combines to 9*3=27 possible hair color s on the genotype level. Of those, 18 are various shade s of red, 9 are shade s that are not red.