A unary operator operates on one operand.

Bile acids play an important role in breaking down fats in the body.

I made delicious hot and sour soup for dinner today.

My friend is suffering from simple herpes.

His new car is a Mustang.

This drink contains carbonic acid.

An imaginary unit is an important concept in mathematics.

This simple forest is very important from the perspective of biodiversity.

An astronomical unit represents the average distance from the Earth to the Sun.

This factory has significantly reduced its carbon dioxide emissions.