Study the given equation of photosynthesis. Identify X, Y and Z and select the INCORRECT statement.
I. X is the gas which constitutes 21% of air in the atmosphere.
II. Y represents the pigment present in leaves of the plant.
III. Z is the gas which turns lime water milky.
IV. X is the gas which extinguishes fire.
AI and III only
BII and IV only
CI, II and III only
DI, II, III and IV
good question