Question

question 4 (1 point)
which of the following is the reason the solution rises through the paper?
a) viscosity
b) gravity
c) surface tension
d) capillary action

Explanation:

Capillary action is the phenomenon where a liquid rises in a narrow space (like the pores in paper) due to the combination of adhesive forces (between the liquid and the paper) and cohesive forces (within the liquid). Viscosity is a measure of a fluid's resistance to flow. Gravity would pull the solution down, not make it rise. Surface tension is related to the "skin - like" property of a liquid's surface.

Answer:

D. capillary action