What is similar for elements located next to one another anywhere on the periodic table?
chemical characteristics
physical state
mass
reactivity with oxygen

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.

Answerapplying a direct current to a non magnetic material in order to create a electromagnetic field; plz check first good luck;