Predicting the outcome of a crash test
what will happen to a test dummy during a crash test if its seatbelt is not buckled?
the test dummy will stop when the car stops.
the test dummy will continue forward until it makes contact with another object.
o the test dummy will strike and rebound continuously within the interior of the car
the test dummy will remain motionless.

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.