Which of the following explains the concave meniscus of water in a clean glass tube? the
A. adhension between water and glass molecules is greater than the sdhension between water molecules B. cohension between water molecules is greater then the adhension between glass and water molecule C. molecules of water near the glass move faster than the molecules at the centre of the tube D. molecules of water at the water-air boundary are often attracted to the centre of the tube E. weight of the water pulls the centre part of the surface down
