The table shows a set of results obtained by students investigating the effect of light intensity on photosynthesis. They varied the distance of the plant from the light source.
|Distance from light source (cm)||Rate of photosynthesis (bubble per min)|
If we draw a graph of this data:
Note that this graph is a curve.
From the graph, suggest the rate of oxygen production when the light source is at 18 cm.
40 bubbles per minute.
Using the graph: