Traditional IRA Withdrawal Rules With a Traditional, Rollover, SEP, or SIMPLE IRA, you make contributions on a pre-tax basis (if your income is under a certain level) and pay no taxes until you withdraw money. IRA withdrawal rules and penalty details vary depending on your age.
LPG (propane) smells because an odourant - Ethyl Mercaptan - is added to the gas to make it easier to detect a leak. In their natural state, LPG (Propane and Butane) and Natural Gas (Methane) are all odourless gases. The distinctive smell that people associate with these gases is actually added to them as a safety measure.
The gas that makes up a fart includes nitrogen, oxygen, carbon dioxide, hydrogen, and methane. For the most part, these flatulence gases are odorless, but can become stinky when other gases are added, such as sulfates (sulfates are why your farts smell like rotten eggs). The sulfates are added in two ways. First, if the gas stays in the intestines for too long, bacteria start adding sulfates.