If the surface of liquid is convex, men A. cohesion pressure is negligible B. cohesion pressure is decreased C. cohesion pressure is increased D. there is no cohesion pressure

The correct answer is: C. cohesion pressure is increased.

Cohesion pressure is the force that holds molecules of

a liquid together. When the surface of a liquid is convex, the molecules at the surface are pulled inward by the molecules below them. This creates a force that pushes against the walls of the container. The greater the curvature of the surface, the greater the cohesion pressure.

Option A is incorrect because cohesion pressure is not negligible. Option B is incorrect because cohesion pressure is not decreased. Option D is incorrect because there is always cohesion pressure in a liquid.