Abbreviation or prefix (abbr.) brevis-short unit symbol for gram is: g. How many grams of gold are in 1 ounce (troy)? The answer is: The change of 1 oz t (ounce (troy)) unit of a gold amount equals = to 31.10 g (gram) as the equivalent measure for the same gold type.
Congestion is as inevitable during cold weather as rain and snow. Cold air can cause chest and nasal congestion by increasing and thickening mucus, irritating nasal tissue and even triggering allergic reactions. But while you may not be able to avoid the cold weather, you can often treat the symptoms of congestion.
With cold symptoms, the nose teems with watery nasal secretions for the first few days. Later, these become thicker and darker. Dark mucus is natural and does not usually mean you have developed a bacterial infection, such as a sinus infection. Several hundred different viruses may cause your cold symptoms.