The given figure shows the two crop fields (plots A and B) have been treated by manures and chemical fertilizers respectively keeping other environmental factors same. Observe the graph and answer the following questions.
Why is the highest peak in plot A graph slightly delayed?

The given figure shows the two crop fields (plots A and B) have been treated by manures and chemical fertilizers respectively keeping other environmental factors same. Observe the graph and answer the following questions. What is the reason for the different patter of the two graphs?

Figure shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions. a. At which points (A, B or C) in the curve is light a limiting factor ? b. What could be the limiting factor/s in region A ? c. What do C and D represent on the curve ?