I think glass does. or maybe a glass prism.
Answer:
since no numbers you will assume it is 1
Explanation:
They have less-runny lava, meaning that it doesn't travel as far before cooling, meaning that the layers build up more steeply, but don't go out as far. You also get layers of ash on the composite volcano to help build it up too
You would take a ruler and measure the amount of centimeter or inches between the two places. Then measure the scale. If the scale was 50 miles and 1 inch and the two points were 2 inches apart. The places would be 100 miles apart because 50*2=100
