A quick thinking 50 kg physics student uses a bedsheet as a makeshift parachute to escape a burning dormitory. The bedsheet provides 400 newtons of air resistance. At what rate does the student accelerate downward? How fast will she be falling when she hits the ground if she jumps from a height of 16 m?

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.

When is this

Iwould say the answer is d