Subject :NSO Class : Class 4
An equation for photosynthesis is written below.Select the correct statements regarding X, Y and 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.
A I and II
B II and IV
C I, II and III
D I, II, III and IV
Ans 1:
Class : Class 6
Thanx sir
Ans 2:
Class : Class 3
Answer: B
II and IV
Solution:
As per the equation of photosynthesis -X is carbon dioxide, Y is chlorophyll and Z is oxygen.
I is incorrect because carbon dioxide constitutes only 0.04% of atmosphere and III is incorrect because oxygen gas does not turn lime water milky.
II and IV
Solution:
As per the equation of photosynthesis -X is carbon dioxide, Y is chlorophyll and Z is oxygen.
I is incorrect because carbon dioxide constitutes only 0.04% of atmosphere and III is incorrect because oxygen gas does not turn lime water milky.
Ans 3:
Class : Class 3
thank u kind sir
Ans 4:
Class : Class 6
thanks sir