Gerald performed an experiment to determine if photosynthesis was affected by the color of light that a plant received. The data from his experiment are shown in the table below.Color of LightNumber of plantsAverage volume of oxygen produced (mL)green40.50orange42.0blue45.0Which format should he use to present his data?

The color of light is a set of categories, and the average oxygen volume is a numerical measurement for each category. A bar graph makes it easy to compare the oxygen volumes for green, orange, and blue light. A line graph is better for showing changes across a continuous scale, while a pie graph shows parts of a whole.

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