A) Absorption of ink
B) Rising of underground water
C) Water drop falling on cotton cloth
D) Water reaching in plants from the root to the leaves
Correct Answer: B
Solution :
Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. The effect can be seen in the drawing up of liquids between the hair of a paint-brush, in a thin tube, in porous materials such as paper and plaster, in some non-porous materials such as sand and liquefied carbon fiber, or in a cell.
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