Amorphous fibres are generally characterized by which of the following properties?

Amorphous fibres are known for their disordered molecular structure, which contributes to several key properties, including enhanced absorbency. The lack of a rigid crystalline structure allows these fibres to interact more easily with moisture and liquids, making them more absorbent compared to their crystalline counterparts. This absorbency is particularly beneficial in applications where moisture management is essential, such as in activewear or towels.

While aspects like durability and elasticity can vary greatly among fibres, the hallmark of amorphous fibres is their ability to wick moisture due to their structural characteristics, which is why increased absorbency is a defining property. Understanding the nature of the molecular arrangement in these fibres clarifies why they excel in absorbency, making this the correct choice.