For an experiment studying the rate of photosynthesis in water plants, a water plant was placed in a beaker of water and set 10 centimeters from a lamp. The number of bubbles released from the plant were counted every minute for five minutes. The process was repeated two more times at 20 centimeters and 30 centimeters from the lamp. Based the data collected a conclusion was drawn by the researchers that the location of a light sources affects the rate of photosynthesis in water plants. What reasoning lead to the interpretation of data and conclusion?