National Science Olympiad Forum By SOF Olympiad Trainer - Page 819
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Darsh Singh from The Deens Academy, Bengaluru
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Mrudula shrinivas marathe from JBCN INTERNATIONAL SCHOOL , Mumbai
Subject :NSO    Class : Class 3

Ans 1:

Akshari Patil from VIBGYOR HIGH Marathalli, Marathalli
Class : Class 4
this question is wrong all options are wrong

Ans 2:

Theertha Uday from Holy Angels ISC School, Trivandrum
Class : Class 6
Yes I also think so

Ans 3:

Akshari Patil from VIBGYOR HIGH Marathalli, Marathalli
Class : Class 4
how can peacock population increase if they don't have snakes to eat ?

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

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Kohil from Kendriya Vidyalaya, Patna
Subject :NSO    Class : Class 8

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DIBYA PRASANNA RANA from DAV Public School, Haldia
Subject :NSO    Class : Class 7

Ans 1:

Saniya Wasnik from Chanda Public School, Chandrapur
Class : Class 8
Its answer is D.It is very simple we have to use 'BODMAS RULE' :)

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Anchita from Euroschool Wakad, Pune
Subject :NSO    Class : Class 4

Ans 1:

Parth from St Stephens School, Chandigarh
Class : Class 5
option C

Ans 2:

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

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

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Dhruv from na, Udaipur
Subject :NSO    Class : Class 6

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Dhruv from na, Udaipur
Subject :NSO    Class : Class 6

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sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Subject :NSO    Class : Class 4

Ans 1:

ABHAY AGARWAL from ,
Class : Class 3
thank u kind sir

Ans 2:

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.

Ans 3:

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

Ans 4:

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

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