Which type of fiber comes from plants or the hair of animals?

Natural fiber is derived from either plant sources or animal hair, making it the correct answer. Plant-based fibers can include cotton, linen, and jute, while animal fibers encompass wool, silk, and alpaca. These fibers are known for their biodegradability and comfort, often used in textiles and clothing due to their breathability and natural properties.

In contrast, synthetic fibers are man-made from chemical processes, using materials such as polyester or nylon, rather than being sourced directly from plants or animals. Blended fibers consist of a combination of both natural and synthetic fibers to enhance certain properties, such as durability or comfort. Artificial fibers, while similar to synthetic fibers, refer typically to those which mimic natural fibers but are purely created through industrial processes without the original biological source.