Solution:
Concept- Natural gas is a fossil fuel and is obtained from underground reservoirs (where million years ago there was a sea) which are formed by the settling down of dead sea organisms which are then covered by sand and clay. These organisms are converted into petroleum and natural gas after they are applied with high pressure and high temperature for millions of years.Natural gas is majorly methane (about 80-85%) which is mixed with ethane, propane and butane. Thus, it is a mixture of hydrocarbons.
Natural gas is a very important fossil fuel as it has many applications. Few of them are-
● It is used as the source of energy in power generation.
● It is a much cleaner fuel for vehicles.
● It acts as a starting material for many other useful substances like hydrogen, carbon, and fertilisers.
Hence, the correct option is (1).