Friday, 14 December 2007

The oil

Oil is a fossil fuel. Its colour is brown.It was formed many years ago. Organic matter made of the remains of little animals formed a deposit in the bottom and was covered by a thick layer of sediment.

The conditions to favour the formation of oil are:

-Not very much deep sea, with many nutrients.

-Sediments.

-Not much movement of water in the bottom.

The products formed by oil to appear in the three states of matter:

-Liquid: raw

-Solid: tarmac

-Gaseous: natural gas

Some adrift of oil are:

-Tarmac

-Gas

-Petrol

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