Silk, rayon and wool are made up of fibers.
The most common element in wool is animal fleece.
They grow wool on wool trees.
Fabric and wool
Wool, Nylon, Cotton
There are many things you can make from wool some of the most common are hat, carves and Jerseys. The wool comes from sheep or goat skins.
The common thing in cotton wool is cotton. Cotton wool isn't really wool -- it's cotton from which the large dirt and foreign objects have been removed. It is commonly used for first aid gauze or tampons -- Americans call it 'absorbent cotton'. (The term cotton wool is UK-centric.)
They all are used for clothing
They are fibers.
The word 'wool' is a noun, a common, concrete, non-count noun. The word 'ball' is a noun, a singular common, concrete noun. The noun ball is also a collective noun: a ball of wool; a ball of string; a ball of wax, etc. The word 'of' is a preposition; the noun wool is the object of the preposition.
They all are used for clothing
Cotton and wool are two common natural fibers. Cotton comes from the cotton plant and is known for its softness and breathability, while wool comes from sheep and is known for its warmth and insulation properties.
All used for clothing .