What is the difference between fats and oils?

A. Oils are lipids and fats are proteins.

B. At room temperature, fats are solid and oils are liquid.

C. Fats are lipids and oils are carbohydrates.

D. Fats are triglycerides and oils are waxes.

It is B. When at room temperature fats are solid and oils are liquids.

B. At room temperature, fats are solid and oils are liquid.

Explanation:

Fats and oils are one of the the three macronutrients (the other two are protein and carbohydrates).

However, fats and oils are different from each other: fats are mainly obtained from animals, while oils are mainly obtained from vegetable sources.

The major difference between fats and oil is that fats are composed of high amounts of saturated fatty acids which makes them solid at room temperature, while oils are composed of mainly unsaturated fatty acids which makes them liquid at room temperature.

Note that: in daily use the two terms may be used interchangeably.