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Subject :NSO    Class : Class 4

Study the given equation of photosynthesis. Identify X, Y and Z and select the correct statement.
X + Water Carbohydrates + Z
I. X is the gas which constitutes 21% of air in the atmosphere.
II. Y represents the pigment present in green leaves of the plant.
III. Z is the gas which turns lime water milky.
IV. X is the gas which extinguishes fire.

AI and II
BII and IV
CI, II and III
DI, II, III and IV

Ans 1:

Class : Class 5
so did i pranab

Ans 2:

Class : Class 6
i did not understand anything/

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