National Science Olympiad Forum By SOF Olympiad Trainer - Page 132
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from ,
Subject :NSO    Class : Class 4

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from ,
Class :

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Aritra Porey from DPS Bangalore North, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

from ,
Class :
The correct answer is C.

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from ,
Subject :NSO    Class : Class 4

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from ,
Class :

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from ,
Class :

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Pournami from Lexicon International School Wagholi, Pune
Subject :NSO    Class : Class 4

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from ,
Class :
The correct answer is D.

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from ,
Subject :NSO    Class : Class 4

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Parmanyu from Learning paths school, Mohali
Class : Class 5
i found this answer effective.

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from ,
Class :
option C

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Nikhil Kocherry from Ryan International School, Mumbai
Subject :NSO    Class : Class 4

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from ,
Class :
The correct answer is D.

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from ,
Subject :NSO    Class : Class 4

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Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
Thanx sir

Ans 2:

PRANSHU AGRAWAL from The Jain International School, Bilaspur
Class : Class 6
thanks sir

Ans 3:

Admin from Revisewise, Noida
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.

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from ,
Class :
thank u kind sir

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

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from ,
Class :
option B

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from ,
Class :
option D

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suresh kumar reddy Guddili from ,
Class : Class 4
A

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

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from ,
Class :
Option (D) because land cools faster than the sea.

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from ,
Class :
option D

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Pratham Jain from SERI International School, Pune
Class : Class 6
c

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

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