Explanation: It’s true because the light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis. Which is when the energy storage molecule ATP and the reduced electron carrier NADPH take place in the thylakoids membranes of organelles called chloroplasts.
It is known as the sedimentation.. this process spreads widely (horizontally) keeping the youngest on the top and the oldest at the bottom.. hope this helps:)
