Question

All of the following are examples of materials except _____.

pigments
canvas
stone
brushes

Answer 1

I would thing the answer would be pigments because the other stuff there is a lot of used for.

Answer 2

The answer to the question is Brushes

Step-by-step explanation:

Brushes are refereed to as devices that conduct current between a moving parts and stationary wires. they are contacts (sliding) that are used in broadcasting current from a static to a rotating part of a motor.

They can also be defined as a carbon brush that has contacts that are electrical wires that are stationary and its moving parts.