Answer:
B) separation by boiling points
Step-by-step explanation:
According to the diagram depicted, crude oil is separated into its different units using boiling points.
- The boiling points of a compound is the temperature at which it begins to boil.
- The process of fractional distillation is used in the oil industry to separate crude oil into its components.
- When the boiling point of a oil fraction is reached, it becomes vaporized and rises within the column