First Aid Exam Taken from the 2014 Colorado Mine Rescue Contest held in Golden, Colorado Progress Indicator: Question 5 of 30 5.  The Universal Gas Law, pressure and ___________ are directly related to temperature, means the _________ the fire the higher the pressures it develops.  (Donald W. Mitchell, Mine Fires 3rd Edition, p. 3) Choices: direction, bigger volume, hotter velocity, cooler