which of the following collections of properties contain only features which can be changed by a resultant force

True.it is better to buy a washer with a higher efficiency rating

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.

Good moring let me you on this question the answer the electric force  have a good day ; )