is observed when water "climbs" up the tube placed in a glass of water. notice that the w appears to be higher on the sides of the tube than in the middle.
A. Cohesion
B. Adhesion
C. Surface Tension
D. Capillary Action
When a tube is mounted in a glass of water, water "rises" into the tube, making the ends of the tube appear taller than the middle. This is an example of adhesion in action.