Is the average speed related to the maximum or minimum speed of the person

It's related to both.

You can always definitely say that the average is greater than
the minimum and less than the maximum.

But that's ALL you can say is true about EVERY case.

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.