How much does 9,000 meters of microfiber weigh less than?

The correct answer relates to the concept of denier, which is a unit of measurement used to determine the fiber thickness of individual threads used in textiles. Specifically, denier measures the fineness of the yarn or fabric.

In this context, 1 denier refers to fibers that weigh 1 gram for every 9,000 meters in length. Therefore, if you are measuring how much 9,000 meters of microfiber weighs less than, the benchmark is a fiber weight of 1 denier. This means that microfibers generally have a lower denier than that, making them lighter in comparison to 1 denier.

When comparing denier measurements, a lower denier number indicates a finer (and typically lighter) fiber, while a higher denier number indicates a thicker (and heavier) fiber. Thus, if 9,000 meters of microfiber is less than 1 denier, it would indeed weigh less than this scale reference point.

Understanding this helps clarify why the answer identifies 1 denier as the correct measurement to compare against for the weight of the microfiber.