"Aspire to do the recycling factor a density challenge" an official from the city of Westminster Mr. Smith tells you that you can have a dump truck full of recycled materials that must be separated and they will pay you $5000 if you can do it unfortunately the job is made more difficult by the fact that someone has ground all of the materials into fine powder making it impossible to separate by hand fortunately Mr. Smith knows what the materials in the truck are as well as the densities, find a way to separate for recycled materials you may need to do this in several steps describe your plan or draw well labeled diagrams to show your plan

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.