A train moves at a constant velocity of 90 km/h. How far will it move in 0.25h?

In 0.25h it will move in 22.5 kilometers.

The correct answer to your question is It will move at 22.5 kilometers

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.