You have two resonating glass tubes one closed at one end and the other open at both ends. They are each 6 cm wide and 53 cm long. What is the fundamental frequency of the tube closed at one end? (Speed of sound in air is 346 m/s)

Iwould say a is accurate

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.