Look at the graph. It shows how light intensity affects the rate of photosynthesis. The lines show different carbon dioxide concentrations and temperatures. Rate of photosynthesis 2.4 30°C, 0.2%CO,. 30°C, 0.1%CO₂ 20 °C, 0.1%CO₂ -B- Light Intensity Explain what is limiting the rate of photosynthesis at the three points A, B and C on the graph. Use evidence from the graph in your answer. (3)​