English, asked by ak9771008, 20 days ago

Oil is one of the world's major sources of energy. We depend on it as fuel for heating, transport

and generation of power. For centuries, animal and vegetable oils have been used for cooking

and as a source of artificial light. But it is mineral oil which meets most of the world's needs

today. Crude mineral oil comes out of the earth as a thick brown or black liquid with a strong

smell. It is a complex mixture of many different substances, each with its own individual

qualities. Most of them are combinations of hydrogen and carbon in varying proportions. Such

hydro-carbons are also found in other forms such as bitumen, asphalt and natural gas. Mineral

oil originates from the carcasses of tiny animals and from plants that live in the sea. Over

millions of years these dead creatures form large deposits under the sea bed and ocean

currents cover them with a blanket of sand and silt. As this material hardens, it becomes

sedimentary rock and effectively shuts out the oxygen so preventing the complete

decomposition of the marine deposits underneath. The layers of sedimentary rock become

thicker and heavier. Their pressure produces heat, which transforms the tiny carcasses into

crude oil in a process that is still going on today. The earth's crust is split into a few huge

continental plates which move continuously rather like rafts on a sluggish tide. Geologists call

this movement as ‘continental drift’.​

Answers

Answered by smithasarat2011
0

Answer:

depends to the oil price,the economy goes

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