What makes coral reefs vulnerable to environmental stress

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

All phases of matter may have a fixed mass