Question

B. 6. The diagram below shows a student's experiment with elodea, a common aquatic plant. What change in the experiment is most likely to increase the volume of accumulation of oxygen gas at the top of the tube? A. Use fewer plants. B. Replace the beaker with a larger container. C. Move the light source closer to the beaker. D. Reduce the amount of water. Light from lamp (1.5 metres) Oxygen gas Oxygen bubbles Water and sodium bicarbonate Plants​

Answer 1

Move the light source closer to the beaker.

Moving the light source will increase light intensity for the plant and this will increase the rate of photosynthesis assuming there are no other limiting factors (eg, carbon dioxide).Increased rate of photosynthesis will produce more oxygen/