Take your finger off the tip. Pull the plunger to the top of the syringe, seal the tip with your finger again and push the plunger down. What happens to the marshmallows? What is being decreased inside the syringe? What
is being increased? What law is demonstrated in this example?

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

i think   the answer is c hope i'm right