What is the importance of capillarity in the water cycle?

Correct answer: It helps draw water from soil into plant roots and upward

The correct answer is B. Capillarity is the movement of water through very narrow spaces because of adhesion between water and surfaces and cohesion among water molecules. Soil contains small pores that can hold and move water. Capillary forces help distribute soil moisture toward plant roots and assist the upward movement of water through narrow conducting tissues after roots absorb it. This makes water available for plant growth and later supports transpiration, which returns water vapour to the atmosphere. A is wrong because capillarity does not transport water directly into clouds; evaporation and condensation are involved there. B is correct. C is wrong because melting ice requires heat, not capillarity. D is wrong because capillarity does not dry rivers. Memory cue: capillarity means water moving through tiny spaces, especially in soil and plant tissues.