Natural was formed millions of years ago along with petroleum when microscopic sea plants and animals died and got buried under the sand and mud. These plants & animals under anaerobic conditions changed to gas. Natural gas consist mainly of methane (about 85%), ethane (about 10%) propane (about 3%) and butane. Read the below questions and try to answer them.
Name two uses of natural gas.

Explanation

As a fuel, it has a very high calorific value of 55kJ/g.
As a source of hydrogen and carbon.