Final answer:
The correct answer is 'Skip waves,' which refers to a hairstyling technique creating a pattern of alternating ridges and grooves on the side of a head.
Step-by-step explanation:
The correct answer to the question about the name given to two rows of ridge curls on the side of a head is d. Skip waves. Skip waves are a hairstyling technique that creates a pattern of alternating ridges and grooves on the hair. The technique involves brushing and combing the hair into alternating directions, typically for a finger wave style that has gaps or 'skips' between the waves, thus giving a distinctive pattern.
While barrel curls involve curling sections of hair to create a tubular shape, cascade curls, also known as stand-up curls, are designed to create volume by standing away from the head. To create indentation curls, pressure is applied to create an indent in the curl. Skip waves, however, incorporate ridges and are not full curls but more of a waved pattern.