National Science Olympiad Forum By SOF Olympiad Trainer - Page 463
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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Shweta Kumari from A B C, Patna
Class : Class 8
127

Ans 2:

Sampurna Mandal from DAV Public School Jagganath Talcher, Angul
Class : Class 8
Yes the answer must be 127

Ans 3:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
well, the answer is right because it is asking the 7th term.

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Avinash Mishra from Central Hindu School, Gorakhpur
Subject :NSO    Class : Class 10

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Devang Sharma from Modern school, Kota
Subject :NSO    Class : Class 4

Ans 1:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Super cool

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Aishwaryo Ayushman Panda from ODM PUBLIC SCHOOL, BBUBANESWAR
Subject :NSO    Class : Class 2

Ans 1:

Kaashvi Singh from TCIS , Bangalore
Class : Class 4
I have add 8 and 9 to get the answer

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Riaant from DPSdwarka,
Subject :NSO    Class : Class 5

Ans 1:

ABDUTTAIYEB ALIASGER SUTERWALA from Hasanat High School, Mumbai
Class : Class 5
d

Ans 2:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
d is the answer

Ans 3:

Vedant from DON BOSCO, CHENNAI
Class : Class 2
ans=c

Ans 4:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
ans is d

Ans 5:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
d

Ans 6:

Sreejani Bhaduri from National Public School, Bangalore
Class : Class 8

Ans 7:

Amey Goyal from Delhi Public School, PANCHKULA
Class : Class 7
ans is d only

Ans 8:

Amey Goyal from Delhi Public School, PANCHKULA
Class : Class 7

Ans 9:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5

Ans 10:

Kunj Tanna from lodha world school, thane
Class : Class 7
The answer is D

Ans 11:

DEVAANGANA SARDAR from G.D. Birla Centre for Education, Kolkata
Class : Class 6
Hey Vedant my cousin elder brother also studies in DON BOSCO but it is in West Bengal

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ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Subject :NSO    Class : Class 4

Ans 1:

Rajveer Santosh Mulik from Rims International School, Pune
Class : Class 4
"D" IS THE ANSWER BECAUSE POND S HAS LESS PLANTS

Ans 2:

DEVAANGANA SARDAR from G.D. Birla Centre for Education, Kolkata
Class : Class 6
Ridhan, it says that the graph is related to the number of water plants in different ponds, which pond is the most polluted. So obviously Pond S is the most polluted as it has the least number of plants because the pollution has killed many of the pond’s plants.

Ans 3:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 9
D IS THE ANSWER

Ans 4:

Kaustav Nath from Gurukul The School, Crossing Republick
Class : Class 5
The correct answer is option D.

Ans 5:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
HOW IT IS D

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Nikita Kumari from Delhi Public School , Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is B. Think that P, R, T and V are North poles and Q, S, U and W are South poles. Same poles repel and opposite poles attract.

Ans 3:

Nikita Kumari from Delhi Public School , Bangalore
Class : Class 7

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suvan puppala from scts, bangalore
Subject :NSO    Class : Class 4

Ans 1:

Samaira from Global Indian International School, Bangalore
Class : Class 8
D cuz tapegrass is an aquatic plant, mango is a terrestrial plant and cactus is a desert plant ....in the same way pondweed is an aquatic plant, neem is a terrestrial plant and Keekar (spelt wrongly in the question) is a desert plant........ for extra knowledge keekar is also called mesquite bush in English (trust me I didn’t copy it from google or something, it is written in our science textbook)

Ans 2:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
tricky question but i know the answer is d

Ans 3:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
d

Ans 4:

Utkarsh from AVM, Mumbai
Class : Class 6

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vrahulprakaash from Amm, Chennai
Subject :NSO    Class : Class 7

Refer to the given dichotomous key.
I. (A) Fibre obtained from natural resources - Go to II
(B) Fibre obtained from chemicals -
II. (A) Plant fibre - Go to III
(B) Animal fibre - Go to IV
III. (A) Fibre obtained from seeds of plants -
(B) Fibre obtained from stem of plants -
IV. (A) Fibre obtained from mammal -
(B) Fibre obtained from insect -
Which of the following is incorrect regarding P, Q, R, S and T?

AP is a petroleum based fibre which does not absorb water readily.
BBoth fibres Q and S are obtained from their source organisms without harming them.
CQ is separated from seeds by retting whereas R is separated from stems by ginning.
DS can be obtained from the same animal again and again whereas T can be obtained from an animal only once in its lifetime.


Solution is one type and option is one type

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tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Parijaat waghmare from Centre point school international, Nagpur
Class : Class 5

Ans 2:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9
Please tell the answer

Ans 3:

Shreejith from EuroSchool , Bangalore
Class : Class 7
It is D .

Ans 4:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7
So you can be champion without being a player?

Ans 5:

from GIIS,
Class : Class 4
I think it’s c

Ans 6:

Arshya from KV Meenambakkam, Chennai
Class : Class 7
I think it's C

Ans 7:

tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4

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