I am investigating the effect of wavelength of light on the rate of photosynthesis. I have chosen 4 colours (red, blue, green and yellow) and also a control. What would be the best graph to use? I will need to plot either the wavelength or colour against the absorbance (basically this shows which produces the highest rate of photosynthesis.) Also, would I include the control on my graph? Thanks!
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A line graph would show the change better than a pie or bar graph would show.