1)Figure shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions:
![](https://lh4.googleusercontent.com/wCUmKyaSZm7PugShOQC5boFFuVrkc8hPDTf_tnwYn-WvklBeYb7dJiqOU4WOAUWE3nYbmjgSPUAllaesL5M5vXub-4Ni6OJnFMhx6Hl8Myx3OpYbwuh4agHimTCjNim1CD-EM_Q)
1)At which point/s (A, B or C) in the curve is light a limiting factor?
2)What could be the limiting factor/s in region A?
3) What do C and D represent on the curve?