INDIAN GEOGRAPHY

Detailed explanation-1: -Natural gas is found with petroleum deposits and is released when crude oil is brought to the surface. It can be used as a domestic and industrial fuel. Russia, Norway, UK and the Netherlands are the major producers of natural gas.

Detailed explanation-2: -Natural gas also occurs with deposits of crude oil, and this natural gas is called associated natural gas.

Detailed explanation-3: -Coal, natural gas, and petroleum are all fossil fuels that formed under similar conditions. Today, petroleum is found in vast underground reservoirs where ancient seas were located. Petroleum reservoirs can be found beneath land or the ocean floor. Their crude oil is extracted with giant drilling machines.

Detailed explanation-4: -Chemically, petroleum consists principally of hydrogen and carbon, but also contains small percentages of oxygen, nitrogen, sulfur, and traces of metals, such as vanadium, cobalt, and nickel. The common organic compounds include alkanes (paraffins), naphthenes, aromatics, and heterocompounds.

Detailed explanation-5: -Natural gas, some of which is seen burning here, is often found near deposits of oil and coal. Oil, coal, and natural gas are fossil fuels. Natural gas is a fossil fuel. Like other fossil fuels such as coal and oil, natural gas forms from the plants, animals, and microorganisms that lived millions of years ago.