Within the academic discipline of cultural anthropology, according to the OED, matriarchy is a culture or community in which such a system prevails or a family, society, organization, etc., dominated by a woman or women. In general anthropology, according to William A. Haviland, matriarchy is rule by women.
Sources of sulfur dioxide pollution In 1963, more than 23 million tons of sulfur dioxide were discharged into the atmosphere of the United States. The fossil-fueled power plant is the chief contributor to sulfur dioxide emissions and accounts for over 40% of the total emission.
It is a liquid at room temperature and one of the 20 least common elements. It is a poisonous, metallic element. Mercury is occasionally found free in nature but usually occurs as the red sulfide ore, called cinnabar, or vermillion. The largest producer of mercury is the USA followed by Spain and Italy. The mercury mines of Spain have long been famous.