National Science Olympiad Forum By SOF Olympiad Trainer - Page 76
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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

AVANEESH GOKHALE from PTVEMS, MUMBAI
Class : Class 4

Ans 2:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4
You have to specify if waxing or waning crescent

Ans 3:

Virat from K l international, Meerut
Class : Class 5
You need to specify whether it is a waxing or waning crescent.

Ans 4:

Vedang Siddharth Thakare from SMT's Saraswati English Medium School., Thane
Class : Class 4

Ans 5:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 6:

Madhuri P from ,
Class : Class 4
you need to specify if waning or waxing crescent

Ans 7:

Hitansh Madhav from GIIS Noida, Noida
Class : Class 4
i thought it was a

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 2:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9

Ans 3:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
NA

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Trishaan Agrawal from delhi public school sector 45, Gurgaon
Class : Class 4
A option how

Ans 2:

Trishaan Agrawal from delhi public school sector 45, Gurgaon
Class : Class 4
A option how

Ans 3:

Archit Borkar from SSVM World School, Coimbatore
Class : Class 9

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7
Mocking or copying.

Ans 2:

Tejesh VB from GEMS New Millennium School, Al Khail, Dubai
Class : Class 8

Ans 3:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
😓😓copying

Ans 4:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
What is mimicry?

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aadin josefina from sorsfort international school,
Subject :NSO    Class : Class 4

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

Archita Moi from The Newtown School, Kolkata
Class : Class 4
Oh my! thanks for solving my problem .

Ans 2:

kartikeya nangrani from the kalyani school, pune
Class : Class 4
Most off your questions are wrong

Ans 3:

Arjun120914 from St. Andrews world school, Ghaziabad
Class : Class 5

Ans 4:

Om Adhatrao from Orchids International School, Thane
Class : Class 4
Thank you for the explanation

Ans 5:

Keanna from APG, MUMBAI
Class : Class 7
A. P could be cold-blooded animal whereas R could be warm-blooded animal. ----- Frog has backbone, lays eggs and is a cold-blooded animal. So, P can be a Frog. Humans have backbone and hair, and they are warm-blooded. So, R can be a Human Being. So, this statement is Correct.B. Q could be six-legged animal whereas R could be four-legged animal. ----- Spiders have six legs and they lay eggs. So, Q can be a Spider. Horses are four-legged animals. They have backbone and hair. So, R can be a Horse. So, this statement is Correct.C. R could breathe through lungs whereas S could breathe through spiracles. ----- Dogs breathe through lungs, they have backbone and hair. So, R could be a Dog. Cockroaches breathe through spiracles. They have backbone and lay eggs, but they have no hair. So, S can be a Cockroach. So, this statement is Incorrect.D. P could have a pair of wings whereas Q could have two pairs of wings. ----- Birds have a pair of wings. They have backbone and they lay eggs. So, P could be a Bird. Most insects have two pair of wings, and they lay eggs. So, Q could be an Insect. So, this statement is Correct.Hence, the right answer is Option C.

Ans 6:

aurik mittal from mayor world school, jalandhar
Class : Class 5
questio is wrong

Ans 7:

Advait Kumar Mangalik from The S D Public School, Muzaffarnagar
Class : Class 4
Keanna you are a copycat

Ans 8:

lavanya from bcm chd road, Ludhiana
Class : Class 5

Ans 9:

Nirvaan Jain from Anand Niketan Satellite Campus, Ahmedabad
Class : Class 4
The option D. is wrong. It mentions 3 pairs of wings whereas it should be 2 pairs of wings.

Ans 10:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Please explain more nicely and Keanna thank you for explaining

Ans 11:

KANAK PRASAD from Kendriya Vidhyalaya IIT Tirupati, Tirupati
Class : Class 5
confusing question

Ans 12:

Shrihan Koley from Radiant International School , Patna
Class : Class 5
There is written on option D that Q could have three pair of wing but the question is wrong.There should be written two pair instead of three pair.Two pair is written on solution.

Ans 13:

Saharsh Aggarwal from Redwood High International School, MUMBAI SUBUEBAN
Class : Class 6
But no spider species have 6 legs

Ans 14:

Aarav sugla from Niraj International School , Secunderabad
Class : Class 5

Ans 15:

Saharsh Aggarwal from Redwood High International School, MUMBAI SUBUEBAN
Class : Class 6
But no spider species have 6 legs

Ans 16:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Hey, some spider species have six legs, usually out of India. And the whole explanation is wrong.

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 4

Ans 1:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 2:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 3:

Tamojeet Sanyal from Don Bosco, Kolkata
Class : Class 2
please explain the reasoning

Ans 4:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
OMG!How confusing!How did the others do it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 5:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 6:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 7:

Vansika Jasrapuria from Chatrabhuj Narsee School, Mumbai
Class : Class 4

Ans 8:

Rakshit Singh from DLF Public School, Ghaziabad
Class : Class 5

Ans 9:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 10:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Let’s study the given food-web carefully:The food-web is starting from P. So, P are plants (Producers). Q, T and U are eating these plants, so they are Herbivores (Primary Consumers). R are eating Q, and V are eating U, so they are Carnivores (Secondary Consumers). S are eating T as well as R

Ans 11:

Krishika Madan Shanmugam from National Public School, Bangalore
Class : Class 5
ans is b

Ans 12:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
wth

Ans 13:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 14:

Aarvika Dansana from Mayoor School Noida, Gautam Buddha Nagar
Class : Class 4
The ans is A

Ans 15:

Harsh Mahyavanshi from Lokhandwala Foundation School, Mumbai
Class : Class 4

Ans 16:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 6
I did it with a guess and got it right somehow!

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Nitika from THE CREEK PLANET SCHOOL, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 2:

UMANG from spring dale college, Lucknow
Class : Class 7
because non green plants like "Indian pipe" are not in green. and they absorb their food from dead plants and animals

Ans 3:

Satyam Pandey from radiant, danapur
Class : Class 5
but all plants have roots below the ground

Ans 4:

Rahul from Cambridge school, noida
Class : Class 4
Because Riya's statement says that all roots are below the ground but the roots of mangroves are above the ground

Ans 5:

Vihaan from Dhirubhai Ambani International School, Mumbai
Class : Class 4

Ans 6:

Vihaan from Dhirubhai Ambani International School, Mumbai
Class : Class 4

Ans 7:

Ashwini Nemade Chaudhari from akshara, Pune
Class : Class 6

Ans 8:

Ameya Dhuri from Birla Public School, Doha
Class : Class 8
No mangoves have roots above the ground I am talking to you Radiant

Ans 9:

Samaira from Global Indian International School, Bangalore
Class : Class 8
Cuz every tree does not have to be evergreen Dum Dum!! Deciduous trees, tidal trees, and many more don’t have all green leaves!!! Evergreen trees do not shed their leaves and so look green throughout the year, but other non-always green trees shed their leaves and are not always GREEN !!!got it?

Ans 10:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
Mangroves have aerial roots!

Ans 11:

Ashwini Nemade Chaudhari from akshara, Pune
Class : Class 6

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Gokul Warrier M from PSBB LLA, BANGALORE
Subject :NSO    Class : Class 4

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ishi gupta from DPS NOIDA, NOIDA
Subject :NSO    Class : Class 4

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
IT should be B as tongue makes it easier to swallow food but it can be D too PLS. explain

Ans 2:

Bk Tiwari from S.D.A, Surat
Class : Class 9
why d please explain

Ans 3:

Bhanu V from World One , Hyderabad
Class : Class 4
D

Ans 4:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9
The answer is option D

Ans 5:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 9
D only

Ans 6:

Sourish Mahakul from Delhi Public School Electronic City, Bengaluru
Class : Class 8

Ans 7:

Shreshta from Presidium, Ghaziabad
Class : Class 3
the answer can c or d.why cant it be c. pleas explain

Ans 8:

UMANG from spring dale college, Lucknow
Class : Class 7
Its answer is option D because saliva is mainly water and it contains enzimes that softnes our food and makes it easier to shallow

Ans 9:

Ashwak from Cambridge, Jalandhar
Class : Class 9
D

Ans 10:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9
D is correct as saliva is mainly water, helps makes it easier for us to swallow our food and softens our food so I got correct answer you people can also check in the solution......😄

Ans 11:

Chinmay S Amboori from Adani Public School, Mundra
Class : Class 7
Why is the answer D ??

Ans 12:

Anjishnu Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 5
d!

Ans 13:

S Nithyanth from Geethanjali Vidyalaya, Bangalore
Class : Class 6
d

Ans 14: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 15:

Hamsini from yagappa international school, Thanjavur
Class : Class 6
I agree with LavanyaIt should be D!

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