Crude oil is formed from the buried remains of plants and animals - it's a fossil fuel. Over millions of years, the remains turn into crude oil, which can be extracted by drilling and pumping.
Crude Oil is a mixture of hydrocarbons
1) A mixture consists of two (or more) elements or compounds that aren't chemically bonded to each other.
2) Crude oil is a mixture of many different compounds. Most of the compounds are hydrocarbon molecules.
3) Hydrocarbons are basically fuels such a petrol and diesel. They're made of just carbon and hydrogen.
4) There are no chemical bonds between the different parts…