Final answer:
The statement is true. Carbon nanotubes can indeed be used to produce lighter and stronger building materials due to their exceptional mechanical, thermal, and electrical properties.
Step-by-step explanation:
True or false: Carbon nanotubes can be used to make lighter, stronger building materials. This statement is true. Carbon nanotubes are carbon allotropes with a cylindrical structure, consisting of rings of sp²-hybridized carbon atoms. They can significantly improve the mechanical, thermal, and electrical properties of materials when added to polymers. These enhancements are due to their incredibly strong and durable nature, which exceed the hardness of diamond. Though applications so far mainly use bulk nanotubes, with further development, they may lead to revolutionary advancements in building materials. Currently, they are used in sporting goods such as bicycle parts, skis, and fishing rods, demonstrating their utility in producing lightweight and resilient products.