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.

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

The answer is D - Both B and C

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

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.