Question

Find the odd man out
peat, lignite, bituminous, oil


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Answer 1

Oil is the odd one out from all of the above.

Answer 2

$\huge\fbox\red{A}\fbox\pink{n}\fbox\purple{S}\fbox\green{w}\fbox\blue{E}\fbox\orange{r}$

I think "Oil" is the odd thing in ur question...