Given that Δ H ∘ f [ Cl ( g ) ] = 121.3 kJ ⋅ mol − 1 ΔHf∘[Cl(g)]=121.3 kJ⋅mol−1 Δ H ∘ f [ C ( g ) ] = 716.7 kJ ⋅ mol − 1 ΔHf∘[C(g)]=716.7 kJ⋅mol−1 Δ H ∘ f [ CCl 4 ( g ) ] = − 95.7 kJ ⋅ mol − 1 ΔHf∘[CCl4(g)]=−95.7 kJ⋅mol−1 calculate the average molar bond enthalpy of the carbon–chlorine bond in a CCl 4 CCl4 molecule.

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

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.