Explain how photosynthesis and cellular respiration are cycles.

The reactants of photosynthesis are and they react with light to make the products and .

The reactants of cellular respiration are and they react in living organisms to make the products and .

The matter or atoms that make the glucose (C6H12O6) and oxygen (O2) in photosynthesis come from the and .

I know photosynthesis and cellular respiration are in a cycle because ..

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.