Complete information about carbon cleaning process what is was how it works and what's it's benefits. #What_is_Hydrogen ? Hydrogen is the most common gas in the universe also known as natural gas it's the most abundant chemical element, estimated to contribute 75% of the mass of the universe. Hydrogen is colourless,odorless,tasteless gas. Hydrogen can be produced from a variety of resources, such as hydrogen wet cells and dry cells,natural gas ,nuclear power, biogas,solar and wind. There is many