Natural gas is also a fossil fuel like oil. And it is also a non-renewable energy similar to oil energy because it can’t be replaced in human time-frame. It is formed when plants and animals, which store the solar energy in them, gets buried inside the earth and due to heat and pressure applied over a span of 1000 years.
Natural gas is a mixture of hydrocarbon gas. Its main constituent is methane of the alkane family. It also consists of various other higher order alkanes such as ethane, butane and others in varying proportions. It might also consist of small quantities of carbon dioxide, nitrogen and hydrogen sulphide.Natural gas is a vital component of the world's supply of energy. It is one of the cleanest, safest, and most useful of all energy sources. Despite its importance, however, there are many misconceptions about natural gas. For instance, the word 'gas' itself has a variety of different uses, and meanings. When we fuel our car, we put 'gas' in it. However, the gasoline that goes into your vehicle, while a fossil fuel itself, is very different from natural gas. The 'gas' in the common barbecue is actually propane, which, while closely associated and commonly found in natural gas, is not really natural gas itself. While commonly grouped in with other fossil fuels and sources of energy, there are many characteristics of natural gas that make it unique. Below is a bit of background information about natural gas, what it is exactly, how it is formed, and how it is found in nature.