Answer :
Light intensity, CO2 concentration and temperature can all limit rate of photosynthesis.
For example, if there is lots of CO2 and light but very low temperatures then temperature would be the limiting factor. However, at room temperature on a bright day, CO2 can be the limiting factor instead. So you can see how it depends on the situation.
For example, if there is lots of CO2 and light but very low temperatures then temperature would be the limiting factor. However, at room temperature on a bright day, CO2 can be the limiting factor instead. So you can see how it depends on the situation.
