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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