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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
There are more bacteria in your mouth than there are people in the world.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

