What percentage of U.S. paper currency is made up of cotton and linen?

The composition of U.S. paper currency is specifically designed for durability and longevity, which is why cotton and linen are used. The correct choice states that U.S. paper currency is made up of 75% cotton and 25% linen. This blend contributes to the texture and strength of the currency, setting it apart from ordinary paper made primarily of wood pulp.

This combination of materials helps prevent wear and tear, making the currency more resilient against everyday handling. The use of cotton provides flexibility and softness, while linen adds strength, ensuring that the notes maintain their quality over time despite frequent use.

Understanding the material composition of currency is essential for appreciating its design and manufacturing processes, which are aimed at ensuring security and longevity.