What cutting technique creates curved lines in a haircut by altering the length of the ends?

The technique that creates curved lines in a haircut by altering the length of the ends is beveling. Beveling involves cutting the hair at an angle, which allows the ends to blend seamlessly and creates a soft, rounded appearance. This method is particularly effective for adding dimension to a hairstyle and for creating soft, curved silhouettes. The angled cut allows for a natural lay of the hair, resulting in a polished look that enhances texture and movement.

In contrast, other techniques serve different purposes. Carving is primarily used for creating specific shapes by removing bulk and adding texture, while chunking is focused on removing weight in sections to create a more choppy look. Texturizing reduces bulk and enhances layering but does not specifically create curved lines. Therefore, beveling is the most appropriate answer when it comes to creating curved lines through the alteration of hair length at the ends.