ANSWER QUICK PLEASE BEING TIMED Tanner did an experiment to study photosynthesis in plants. He grew cotton plants in large, closed containers. He added different amounts of carbon dioxide gas to each container. He used a probe to calculate the rate of photosynthesis. The graph shows his results. Tanner drew this model to describe the process of photosynthesis. © 2017 Measured Progress. All rights reserved. Measured Progress and its logo are registered trademarks of Measured Progress, Inc. 4 Student Assessment | Science | Biology | Form 1 How does increasing carbon dioxide affect photosynthesis? A The amount of water vapor produced and the amount of energy stored in oxygen will increase. B The amount of water vapor produced and the amount of energy stored in oxygen will decrease. C The amount of oxygen produced and the amount of energy stored in sugar will increase. D The amount of oxygen produced and the amount of energy stored in sugar will decrease.