Question

How is an upper and lower meniscus formed? Better answer will be marked as the BRAINLIEST.​

Answer 1

Answer:

It can be either concave or convex, depending on the liquid and the surface. ... Conversely, a convex meniscus occurs when the particles in the liquid have a stronger attraction to each other than to the material of the container.

Answer 2

Answer:Due to cohesive and adhesive forces.

Explanation: Adhesive forces between the liquid and container forms concave meniscus (lower meniscus).

Cohesive forces between the molecules forms upper meniscus (convex meniscus).