crude oil?

which is the best description of crude oil, please choose one?
a pure oil
a mixture of elements
a pure compound
a mixture of compounds

One Response to “crude oil?”

  1. Jerry Says:

    Crude Oil is a mixture of compounds because it is made up of hydrocarbons (hydrogen and carbon atoms). When two elements combine together, they make a compound so it is a mixture of compounds.
    Hope This Helps!

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