Vitamins require no digestion and are absorbed directly into the blood stream. The thirteen vitamins identified are divided into two groups, fat-soluble and water-soluble.
TIFF is a computer file format for storing raster graphics images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general. The format was originally created by the company Aldus for use in desktop publishing.
Tuff (from the Italian tufo) is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is compacted into a solid rock in a process called consolidation.Tuff is sometimes called tufa, particularly when used as construction material, although tufa also refers to a quite different rock. Rock that contains greater than 50% tuff is considered tuffaceous.uff is sometimes called tufa, particularly when used as construction material, although tufa also refers to a quite different rock.