What happens to the concentration of a solution if you do each step.

1. If you remove some solute... There'll be more of the solvent in the solution...

This will in turn make the solution diluted or less concentrated.

2. If you remove some solvent... There's going to be more of the solute in the solution... Thereby leading to a more concentrated solution.

3. If you remove some solution without changing the concentrations of either Solute or Solvent... The nature and concentration of the solution REMAINS THE SAME.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.