If a car moves with an average speed of 17 m/s for 4 hours, it will travel a distance of 61,200 meters. How far will it travel if it travels at this average rate for 1 hour? 15,300

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.