Starting from rest, a child zooms down a frictionless slide from an initial height of 3.00 m.
What is her speed at the bottom of the slide?
Assume she has a mass of 25.0 kg

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.