density of natural gas there is no one correct starting sea level density of natural gas since natural gas densities vary depending on where the gas was obtained gas from the north sea russia or shale gas will all have different densities typically in the range of 0 7 to 0 9 kg m3
A. It takes approximately 24-48 hours for initial symptoms to appear after exposure to the influenza virus. If you suspect you have the flu, seek medical treatment quickly.
Making the world better, one answer at a time. Symptoms of the flu usually develop suddenly, about three days after being exposed to the virus. They include fever, chills, cough, sore throat, runny nose, and soreness and aching in the back, arms and legs. Minor edit? + 72 others found this useful. Was this answer useful?