Question

Carbon nanotubes are made of the same material as the graphite found in pencils, a material soft enough to leave an image on

paper. Although carbon nanotubes are much smaller than a human hair, they are stronger than steel. What factor accounts for this
strength?
They are extremely elastic.
They are a mass of ionic carbon to carbon bonds.
They are created using high pressure then super-heated.
They are composed of unbroken chains of covalent carbon to carbon
bonds.

Answer 1

They are composed of unbroken chains of covalent carbon to carbon bonds

Step-by-step explanation: