Vitamin B12 could trigger outbreaks of acne, scientists have today warned. The essential nutrient, found in meat, fish, eggs and dairy products, as well as in Marmite, alters the activity skin bacteria. This leads to unsightly spots and pimples in susceptible people, a new study found.
Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. Sulfur dioxide dissolves easily in water to form sulfuric acid. Sulfuric acid is a major component of acid rain. Acid rain can damage forests and crops, change the acidity of soils, and make lakes and streams acidic and unsuitable for fish.
Best Answer: Almost all the sulphur dioxide in the air comes from industrial sources. Industrial smelters, which obtain metals from sulphide ores, produce tones of sulphur dioxide daily. Half of the output of sulphur dioxide comes from the burning of coal.All coal contains between 0.5 and 5 percent sulphur.The sulphur dioxide escapes up chimneys into the atmosphere. Worldwide, 150 million tones a year are emitted.alf of the output of sulphur dioxide comes from the burning of coal. All coal contains between 0.5 and 5 percent sulphur. The sulphur dioxide escapes up chimneys into the atmosphere.