The concentration of $CO_{2}$ in the atmosphere is between

Does moonlight support photosynthesis? Find out.

Which is the major limiting factor for photosynthesis during the day?

What will be the effect when very high intensity of light is supplied to a photosynthesis system?

Which of the following is not an external factor for plants?

The figure shows the effect of light on the rate of photosynthesis. Based on the graph,answer the following questions:
$(a)$ In which region/s (indicated by arrows) is light a limiting factor?
$(b)$ What could be the limiting factor/s in the region where the rate of photosynthesis becomes constant?
$(c)$ What does the point where the curve flattens represent?