DENDROLOGY

Detailed explanation-1: -As it is normally present in the atmosphere at very low concentrations (about 0.04%), increasing carbon dioxide concentration causes a rapid rise in the rate of photosynthesis, which eventually plateaus when the maximum rate of fixation is reached.

Detailed explanation-2: -Carbon dioxide concentration Carbon dioxide-with water-is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase.

Detailed explanation-3: -Elevated [CO2] increases the availability of carbon in leaves causing greater Rubisco activity and higher rates of photosynthesis.

Detailed explanation-4: -Photosynthesis can be influenced by several factors some of these factors are light intensity, temperature, water supply, and the concentration of carbon dioxide. If the temperature and light intensity is too high or low, there is an immediate decline in the rate of photosynthesis.