1. What does the Fed need to do to the money supply to change the demand? A Increase the money supply
B Decrease the money supply

2. What should the fed do to the reserve requirement to change the money supply?
A increase the reserve
B decrease the reserve

This is what a calorimeter is used for simpler ex, to measure calories in food.

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.