Crude oil is a mixture of many liquids. The crude enters the bottom of a tall column where it's heated the substances rise up the column until they cool down and condense back to liquids. The components of oil can be separated because of differences in which property

Respuesta :

Hi, sorry this is late and you most likely no longer need it but the answer to this question is the Third one.. Boiling point.

Hopefully this helps somebody :)

Answer:

BOILING POINT

Explanation:

I got it correct