It usually takes 1 to 4 days to get symptoms of the flu after you have been around someone who has the virus. Most people get better without problems. But sometimes the flu can lead to a bacterial infection, such as an ear infection, a sinus infection, or bronchitis.he flu is caused by influenza viruses A and B. There are different strains of the flu virus every year. The flu causes a fever, body aches, a headache, a dry cough, and a sore or dry throat.
Best Answer: But if you're lucky, you're talking about water, where the density is 1 g/mL, so there is 1 Kg in a Liter, and 1000 mL/L, and...
By definition, a Liter of water weighs 1 kg (1 kilogram or 1000 grams). An 1 mg (1 milligram or 1/1000 of a gram) Therefore 1 mg = 1/1,000,000 of a kg. So, based on what we have learned: 1 mg/L = 1 mg/kg = 1 mg/million mg = ppm.