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.
Stomach flu can take up to forty-eight hours after exposure to begin to affect you and the symptoms usually come on slowly. Stomach Flu Causes Like influenza, stomach flu is caused by a virusâusually one of the following: