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The fine particles are mostly made from gases. There are four major origins for that gases which are responsible for these particles: rock (vaporized during combustion or casting), carbon from combustion, organic carbon, sulfates and nitrates. Take sulphur dioxide. It is created during engine combustion, but when it climbs into the atmosphere and mixes with rain it will become sulphuric acid. We all probably know very well what that will do- since it is highly corrosive and dangerous in concentration. Almost all fruits and veggies are reduced calories and an excellent source of fiber, nutritional supplements. Consuming many fruit and veggies might help maintain your weight more easily along with help obese people shed weight. Keeping a normal weight will reduce pressure on the spine, thereby relieving pain. Besides, some vegetables and fruits possess good pain-relieving properties such as cherries, blueberries, red grapes and citrus fruits full of vitamin C, that may delay the creation of osteoarthritis and fight back pain.