1482Every Day ScienceMedium
The blotting paper helps observe liquid by__________?
ABoldness
BCapillary Action
CViscosity
DSurface Action
Correct answer
B. Capillary Action
Explanation
Blotting paper absorbs liquids through capillary action, which is the movement of a liquid through a spongy material. Capillary action is caused by the forces of adhesion, cohesion, and surface tension.