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 2 is the second darkest hair color level. It is usually used to describe a natural black, and is the natural color of most people who have naturally black hair along with Level 3, soft/light black hair. Refer to the hair color chart. Most drugstore black hair shades are Level 2, medium black. Level 2 hair color is best suited to people whose natural hair color is between Level 2 and Level 3.5.
Without other reflects, this shade will allow your natural tones to show. It is best for anyone with natural hair between light brown and darkest brown. If you prefer a lighter color than Medium Brown that still reflects naturally, try shade 6.0, Light Natural Brown. For one shade darker, try shade 4.0, Dark Brown. If you would like to remain in the medium brown range but would like to try other reflects and tones, there are other shades to choose from including 5.03, 5.3, and 5.60. *For women with currently color treated hair, there are special considerations for the color result you can achieve.