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.
Sulfur dioxide is primarily produced for sulfuric acid manufacture (see contact process). In the United States in 1979, 23.6 million tonnes of sulfur dioxide were used in this way, compared with 150 thousand tonnes used for other purposes. Most sulfur dioxide is produced by the combustion of elemental sulfur.