Nov 19, 2020 · Each bar represents the contribution to value-added. Select a year on the slider (1972 to 2020). Industries on the graph are grouped into four broad industries: goods-producing industries: manufacturing; electricity, gas, water, and waste services; and construction industries. primary industries: agriculture, forestry, fishing, and mining.Magnesium oxide is used in the medical field to mitigate heartburn and acid reflux. It aids the digestive system. It is also used as a mild laxative. Because of its insulating properties, MgCO₃ is used as fireproofing. Because of its absorption properties and pH balancing power, it is used in the cosmetic industry.Magnesia plays a vital role in environmental protection. It is used to treat industrial wastewater by removing silica and precipitating heavy metals. It is used to reduce air pollution by stripping sulfur dioxide from industrial air emissions. Its absorbent properties are used to …Jul 15, 2020 · Magnesium alloys are mainly used in marine equipment, underwater weapons, seawater batteries, diving suits, sacrificial anodes, timing devices, etc. in the shipbuilding industry and marine engineering. There are countless application …
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