Question

An insulator

a. Allows the easy movement of heat
b. Does not allow the movment of heat
c. is usually a non metal
d. Both B and C.

Answer 1

The answer is D - Both B and C
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An insulator has a extremely high resistance, not allowing the flow of electricity to move through it

Examples of insulators are: glass, cardboard, rubber, paper, etc...

Conductors on the other hand allows the flow of energy

Conductors are usually metal objects that electricity can easily flow through

Answer 2

D.Both B and C
As they not allow heat to pass through and usually non metal