brett said if a new federal government decided to withdraw the workforce supplement funding after the first year dpg had agreed to fund a 3 % increase in the second and third years of the agreement
Pure helium is a medium that allows sound to pass through it more quickly than air, so it makes your voice sound higher pitched (the mechanics are similar to speeding up a video and hearing the sound pitch up). Some gases will do the opposite; most commonly, sulfur hexaflouride, which slows down sound waves.
Lower concentrations of propane gas may cause less severe symptoms, such as rapid breathing and fatigue. Symptoms become more severe as less oxygen becomes available due to the gas displacing oxygen in the lungs, which can eventually lead to death.