Question

If the concentration of oxygen increases, very high temperatures, very concentration of carbondioxide the rate of photosynthesis decreases.will you accept.why ,why not? give reason. 

Answer 1

If the concentration of oxygen increases then the rate of photosynthesis decreases because photosynthesis mainly needs CO2 but if the level of oxygen increases then CO2 decreases. So, it truly effects the rate of photosynthesis.