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.
Soda pop, it is rumored, can make your voice raspy sounding. There is no evidence that short or long term soda makes your voice sound raspy, or changes it's tonality in any other way. A raspy voice is usually caused by repeated minor damage to your vocal cords, that your body repairs, but leaves behind scar tissue.