The primary gas found in natural gas is methane (CH4). Methane is a colorless, odorless gas that is the simplest alkane, consisting of one carbon atom bonded to four hydrogen atoms. It is a significant energy source utilized for heating, cooking, and electricity generation. Natural gas is composed mainly of methane but can also contain other hydrocarbons, carbon dioxide, nitrogen, and hydrogen sulfide in smaller amounts. Methane is considered a cleaner-burning fossil fuel compared to coal or oil, producing less carbon dioxide and particulate matter when combusted, making it a preferred choice for many applications.