National Science Olympiad Forum By SOF Olympiad Trainer - Page 699
  1. Home
  2. /  Forum

User Forum

Ask Your Question
from , Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
every single sound has its own secondary waves, so the correct option must be option C.

Ans 2:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
correct option is c

Post Your Answer

Ethel shiju from National Public School Indiranagar, Bangalore
Subject :NSO    Class : Class 8

Ans 1:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
Actually, the solution is opposite to the correct answer

Ans 2:

stavya from dps noida, noida
Class : Class 8
the soultion is wrong beacuse the literal defination of spontaneous combustion tells us that it happens at room temprature without application of heat by external source

Ans 3:

Student from School, City
Class : Class 8

Ans 4:

Divij Narang from ,
Class : Class 9

Ans 5:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9

Ans 6:

Bhuvanesh Singla from SCTS, Bengaluru
Class : Class 8
Hi, the statement 2 is true but just tells about the type type combustion to which the reaction given in statement belong. it does not tell about actual cause of burning of phosphorus in air at room temperature. the reason for statement 1 is that phosphorus is a highly reactive element that's why burns in air at room temperature.

Ans 7:

arnav from the gurukul, Panchkula
Class : Class 5

Ans 8:

Soham from Vibgyor high, Pune
Class : Class 8

Post Your Answer

Ethel shiju from National Public School Indiranagar, Bangalore
Subject :NSO    Class : Class 8

Ans 1:

Triguna from Kendriya Vidyalaya No.1 Salt Lake, Kolkata
Class : Class 8
Why so? In both the cases soybean is present.

Ans 2:

Aadavamoorthy from Advaith International Academy, Hosur
Class : Class 9

Ans 3:

Sahasra Shanker from KV IIT, Chennai
Class : Class 6
yeah right Triguna!!! in both cases soybean is present? why so?

Ans 4:

MandarPalkar from KV DRDO, Bangalore
Class : Class 8
The protein requirement of mustard is fulfilled by the ribozome present in root nodules of soyabean?

Ans 5:

SIDDHI SHREYASH from Phoenix Green International School , Hyderabad
Class : Class 9

Ans 6:

S V Harini from Vailankanni public school , Krishnagiri
Class : Class 8
Think in the way of leguminous crops

Ans 7:

Aadavamoorthy from Advaith International Academy, Hosur
Class : Class 9
Both Wheat and Maize require rotation of crops.

Ans 8:

Anshuman D from MVM, Hyderabad
Class : Class 9
Supposed to be only ABecause mustard is a non leguminous plantEven it can be rotated with soyabean

Ans 9:

Paarth Vashistha from Kunskapsskolan Gurgaon , Gurgaon
Class : Class 8

Ans 10:

Sumedha Mishra from xyz, School, Pune
Class : Class 8

Post Your Answer

Anurag Basistha from Prudence School Dwarka 16 B, Delhi
Subject :NSO    Class : Class 6

Ans 1:

Ritika Bakshi from Techno India Group public School Hooghly, Chinsurah
Class : Class 7
Want option!

Ans 2:

Raghav from Shalom Hills International school, Gurgaon
Class : Class 6
They're not even giving me options

Ans 3:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6
The shadow will be whole black as the book is an opaque object and will not allow any light to pass through it so on the screen it will form a shadow. And the rest that is the ring, no light will reach it thus how can its shadow be formed?

Ans 4:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
NO OPYIONS!

Ans 5:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9

Ans 6:

Aniket Ghosh from DAV Public School Haldia, Haldia
Class : Class 9

Ans 7:

Naman from Svm, Nalasopara
Class : Class 6
options are missing

Ans 8:

Ahaan Pathak from Treamis World School, Bangalore
Class : Class 8
they didn't give the options to my computer

Ans 9:

Souvik Bhattacharya from MVM, Hyderabad
Class : Class 10
I got the question with the options in my laptop. For those who did not get the options : it is the website's fault

Ans 10:

BHAVYA JHA from GLOBAL CITY INTERNATIONAL SCHOOL, BANGALORE
Class : Class 6
they should be more careful

Ans 11:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
They did not give options so that is why it went wrong. these kind of incidents happen very frequently in SOF

Ans 12:

Ishaan Mishra from Sai International School, Bhubaneswar
Class : Class 7
I typed in c. What is this?

Ans 13:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
they didnt give the options

Ans 14:

Bharat from Geetanjali Olympiad school, Bangalore
Class : Class 9
they did not give options

Ans 15:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
iT IS NOT LAPTOP'S MISTAKE IT IS THE WEBSITE'S MISTAKE ITSELF.

Ans 16:

Anmol kathar from deogiri global academy, aurangabad
Class : Class 10
they didn't given on question page so all my friends and I missed that question

Ans 17:

Kshitij from Sams, Bangalore
Class : Class 6
they MUST and SHOULD be more CAREFUL. No options??? Then, how should we answer their question??? they take no actions! look:-a person has commented a year ago but?NO RESPONSE

Ans 18:

Ankush Ghosh from DPS, Doha
Class : Class 10
no options

Ans 19:

khushi Joshi from Svkm , Mumbai
Class : Class 10
They did not give the options on my iPad so I couldn't see which was the correct ans. something needs to be done about this problem.

Ans 20:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
my laptop din't provide the options

Ans 21:

Sharmi Chowdhury from G.D Birla Centre For Education , Kolkata
Class : Class 7
They didn't give options

Ans 22:

Aarush Laddha from NCFE, bengaluru
Class : Class 6
They did not provide options on my laptop but option C is correct.

Ans 23:

Bhabani Prasad from Narayan School, Kolkata
Class : Class 6
They did not give options on my ipad .

Ans 24:

Riddhi from St Ursula high school, PIMPRI CHINCHWAD
Class : Class 6
No options

Post Your Answer

Anshu Manglik from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

arsh from nps, bangalore
Class : Class 4

Ans 2:

sankerths s from Shishya BELM public School, Bangalore
Class : Class 10
correct ans is C

Ans 3:

Madhura Mageshwaran from zurich school, zurich
Class : Class 6
This is actually multiple Answer Q.It is silly!!!

Ans 4:

Saiesh from Sindhi high school, Bangalore
Class : Class 4
Correct answer is C

Ans 5:

Vibha from Birla Public School, Doha
Class : Class 7
THE CORRECT ANSWER IS D BECAUSE THEY NEED TO OVERCOME DEFICIENCY OF NITROGEN

Ans 6:

Daksh Chanani from Sri Sri academy, Kolkata
Class : Class 8
c

Ans 7:

Aarvi Gosai from The New Tulip International School, Ahemdabad
Class : Class 4
ACTUALLY I DISAGREE WTH my PAST SELF SAYING c IT IS d

Ans 8:

Vrishank Sai Anand from GEMS Modern Academy, Dubai
Class : Class 9
the correct answer should be C

Ans 9:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 6
Option D

Ans 10:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
c

Ans 11:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7

Ans 12:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
I think Dalso

Ans 13:

Manan thorat from Podar powai, Mumbai
Class : Class 4
Its just sooo Confusing Tel the logi I dont understand!!

Ans 14:

Rishi from Deens Academy, BENGALURU
Class : Class 9
B C D is the answers

Ans 15:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
D is correct

Ans 16:

Aarvi Gosai from The New Tulip International School, Ahemdabad
Class : Class 4
C

Ans 17:

Suniti Kumar Ghosh from Holy Angels' School, Katwa
Class : Class 8
Correct answer is, C

Ans 18:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
d

Ans 19:

Brinda Modi from Orchids International School, Pune
Class : Class 6
Yes, it is a multiple answer question.

Ans 20:

Chinmay S Amboori from Adani Public School, Mundra
Class : Class 7
Answer should be C and D.

Ans 21:

Anjishnu Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 5
Correct answer is D.Because insectivores plants can photosynthesise.

Ans 22:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 8

Ans 23:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
B,Care correct as they can not do photosynthesis , uses his leaves to catch food

Ans 24:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 7
c and d are both the answers i think

Post Your Answer

from Queen of angel, bharuch
Subject :NSO    Class : Class 3

Ans 1:

Shreya from RCIS , MY SORE
Class : Class 3
U

Ans 2:

Shreya from RCIS , MY SORE
Class : Class 3
U

Post Your Answer

Bhabani Prasad from Narayan School, Kolkata
Subject :NSO    Class : Class 5

Ans 1:

Ishir Jha from Gyan Ganga Global Academy, Rosera
Class : Class 8

Ans 2:

likith from Delhi Public School International School, Singapore
Class : Class 7
Option C is correct

Ans 3:

Dushyant Singh from Shri Ram Centennial School, Indore
Class : Class 6
option b is correct because by sitting with his head facing up wards would take the blood flow downside

Ans 4:

Kashvi Sharma from Jankidevi Public School , Dausa
Class : Class 9
Yes,In the book it is said that the patient should be made sit and lean forward not backward and patient should be told to pinch the sides of the nose together. So the answer should be C.

Ans 5:

Siddhanth Subramanian from Global Indian International School , Singapore
Class : Class 7
option c is correct

Ans 6:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
option c is correct

Ans 7:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 10
Option C is right

Ans 8:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 5
yes. Gauri Singh is right . option c is right .

Ans 9:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
i agree with Gauri Singh and Kashvi Sharma

Ans 10:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6
Answer B is right because if you refer to the 4th grade book, the first point written is to tilt your your head back

Ans 11:

Jasmine Kaur from Venkateshwar International School , New Delhi
Class : Class 5
On page 75 of "Learning Science for Smarter Life" for class V it is mentioned that person should sit down and lean forward. It also says to pinch the nose.All answer choices of this question are therefore incorrect.

Post Your Answer

DIBYAJYOTI ROUTRAY from Stewart school, Cuttack
Subject :NSO    Class : Class 6

Ans 1:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 2:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6
The answer is A. You should Read the book twice again. But even then also you think that the answer is B than the book is a spam. Adaptation is the permanent feature of an organism which helps it to survive in its habitat, while acclimatisation is a temprory feature or change in feature of an organism which helps it to survive in any other place rather than its habitat......................................................................

Ans 3:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 4:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 5:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 6:

Pratheek from Null, Null
Class : Class 4

Ans 7:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 8:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 9:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 10:

Pratheek from Null, Null
Class : Class 4
Acclimatization and adaptation mean two totally different things. Adaptation means permanent adjustment to our habitat whereas acclimatization means temporary adjustment to a place where we temporarily stay for some time and get used to. In my opinion, option A is the right answer.

Ans 11:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8
the answer should "a" as acclimatisation not adaptation

Post Your Answer

Saksham Kaushal from Ahlcon International School, Delhi
Subject :NSO    Class : Class 5

Post Your Answer

Shreyas from VPEMS, Baramati
Subject :NSO    Class : Class 4

Ans 1:

Shreyas from VPEMS, Baramati
Class : Class 4

Ans 2:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
answer is B

Ans 3:

Niteen Jit Sahu from Diya Academy of Learning, Bengaluru
Class : Class 7
it is the wrong answer if everybody start replying the answer is wrong,so the heads might change it.

Post Your Answer