National Science Olympiad Forum By SOF Olympiad Trainer - Page 649
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Shaurya from Modern Public School, Bhiwadi
Subject :NSO    Class : Class 4

Ans 1:

Alisha from Delhi Public School , bopal, Ahemdabad
Class : Class 8
how is B correct??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Ans 2:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
b is correct shivan dpga

Ans 3:

NEEV SINGH from VISHWA BHARATI PUBLIC SCHOOL, Noida
Class : Class 8

Ans 4:

Pradhyumna from J S S Public School, Bengaluru
Class : Class 4
C is correct

Ans 5:

Manan thorat from Podar powai, Mumbai
Class : Class 4
B is the answer because bubbles are melting inside a pack cointanier so that procces is called as condenstation.

Ans 6:

Prakriti Singh from Ryan International School, Pune
Class : Class 4
B is the answer

Ans 7:

Utsavi Priya from DPS RUBY PARK, KOLKATA
Class : Class 8

Ans 8:

Student from School, City
Class : Class 8
llllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

Ans 9:

Student from School, City
Class : Class 8
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllkkkkkkkkk

Post Your Answer

Shaurya from Modern Public School, Bhiwadi
Subject :NSO    Class : Class 4

Ans 1:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2

Ans 2:

k tagore from montessori school, KURNOOL
Class : Class 3
The answer is b

Ans 3:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2
its b

Ans 4:

Pradhyumna from J S S Public School, Bengaluru
Class : Class 4
B

Ans 5:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
thanks Jaya Shree

Post Your Answer

Mrinaal nandini from Kendriya Vidhyalaya Rohini sector 8, Delhi
Subject :NSO    Class : Class 4

Ans 1:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9
D is correct as when you will unscramble the other options all of them prevent soil erosion but D will not (A-embankments B-terrace farming C-afforestation D-overgrazing).....😄

Ans 2:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
D IS THE ANSWER

Ans 3:

TARA NAUTIYAL from CONVENT OF JESUS AND MARY, DEHRADUN
Class : Class 4
the ans is D overgrazing

Ans 4:

Ryan from YBIS , SINGAPORE
Class : Class 5

Ans 5:

shreyash rawat from podar international school, pune
Class : Class 8
its [d] -overgrazing

Ans 6: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 7:

Shubh Mertia Jain from JBCN INTERNATIONAL School, Mumbai
Class : Class 4

Ans 8:

Rahul from Cambridge school, noida
Class : Class 4
why option d that is overgrazing.... why not Terrace farming that is b

Ans 9:

Priyanshi from Delhi Public School, Gurugram
Class : Class 4
D is the correct answer

Ans 10:

Radhika Jain from Sushila Birla Girls' School, Kolkata
Class : Class 5
No doubt it is D ( A - EmbankmentB- Terrace FarmingC- Afforestation D - Overgrazing )( Others prevent soil erosion )

Post Your Answer

Diya from DPS, Dubai
Subject :NSO    Class : Class 8

Ans 1:

Ayush Gorain from Sarala Birla Public School, Ranchi
Class : Class 8
I would like to know what is the logic behind option (A) being the correct answer too.

Ans 2:

Chatresh ramasai gudi from Bgsnps , Bangalore
Class : Class 8
But what if s the pattern.

Ans 3:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
What is the explanation for it being A?

Ans 4:

Student from School, City
Class : Class 8
Mr. Admin from revisewise, Noida, please include an explanation for your answer, A.You have, also, not provided a solution for this.

Ans 5:

anirudh from KV IIT, Madras, CHENNAI
Class : Class 8

Ans 6:

MEGHNA SARKAR from Delhi Public School'Rubypark,Kolkata, Kolkata
Class : Class 6

Ans 7:

Dhruvan G from Indian School al Ghubra, Muscat
Class : Class 9
What is the explanation or the solution for A?

Ans 8:

Prathamesh from DPS bhilai, Bhilai
Class : Class 9
count the lines and toatal horizontally. its 10 for first row, 12 for second and must be 14 for third, making it figure with 4 lines that is A as correct option.

Ans 9:

The Address from Somaiya, Mumbai
Class : Class 6
what is the explanation for A

Ans 10: (Master Answer)

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

Post Your Answer

Siddhi from Cambridge Court High School, Jaipur
Subject :NSO    Class : Class 5

Ans 1:

Arjun Gourineni from CHIREC International School, Hyderabad
Class : Class 7

Ans 2:

Harsh Sobti from the samhita academy, BLR
Class : Class 5

Ans 3:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9

Ans 4:

Arav Gupta from Delhi Public School Gurgaon, Gurgaon
Class : Class 8

Ans 5:

Divyanshi from United international School, Bangalore
Class : Class 6
The answer is (a) because when the full moon and new moon are there then the sun, earth and moon are aligned and the sun is also pulling at the sea forming big tides.

Ans 6:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
Phases D and H are suitable. Or not?😄

Ans 7:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
Look at the diagram.........the faces of moon closest to the earth are D and H, hence the suitable solution is A

Ans 8:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Answer is B only.

Ans 9:

Jayaditya singh from Delhi Public School, gurgaon
Class : Class 9
It is a fact that the highest tides occur when the moon is full or new. In the diagram, the positions F and J are the full moons and new moons, so the correct answer should be B

Ans 10:

Akshaj Gupta from Neerja Modi School, Jaipur
Class : Class 7
Class:It should be A

Ans 11:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
It should be B only .

Ans 12:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
Bbbbbbb!

Ans 13:

aarav shankar from st xaviers high school, gurugram
Class : Class 8
It is B. Don't go on the picture. Full and new moon are always closer to Earth.

Ans 14:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
It is (A)

Ans 15:

shubhavi Dhondge from NPS, Banagalore
Class : Class 9
Even I think it is A

Ans 16:

Shabd from Hdfc, Gurgoan
Class : Class 6
I do with Harsh Sobti.

Ans 17:

Richeek from RN Podar School Santacruz, Mumbai
Class : Class 5
i have done this question and they are showing b

Ans 18:

Gauransh Singla from DPS , Navi Mumbai
Class : Class 5
the correct option is b

Ans 19:

Sumit Biswal from Dps gandhinagar, Gandhinagar
Class : Class 7

Ans 20:

Deepika Goyal from Neerja modi school, Jaipur
Class : Class 7
B

Ans 21:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
just because we can see the whole moon during a full moon dosen't mean that on that day there will be the greatest tides as the moon dosen't cut itself into half on 1st and 3rd quarter. So, the answer must depend on the distance of the moon from the earth as the gravitational pull of the moon will have more effect when it is closer to earth and will raise bigger tides. The moon is closest to earth at phases D and H. So, clearly the answer should be A

Ans 22:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
how is it b, it should be a

Ans 23:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 9
Ohh yeah,, it is A

Ans 24:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question

Ans 25:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10

Ans 26:

Siddhi from Cambridge Court High School, Jaipur
Class : Class 5
d and h are only the answers..

Post Your Answer

Gulab Pamnani from India International Scbool, Jaiput
Subject :NSO    Class : Class 6

Ans 1:

Abhaid Goel from Indian School , Muladha
Class : Class 10
the answer should be option d

Ans 2:

Abhaid Goel from Indian School , Muladha
Class : Class 10
the answer should be option d

Post Your Answer

Vihaan Tyagi from Vikas the concept, Hyderabad
Subject :NSO    Class : Class 3

Post Your Answer

Astha from Girls' High school, Allahabad
Subject :NSO    Class : Class 7

Ans 1:

shantanu from Wisdom World School, KURUKSHETRA
Class : Class 7
The correct answer of this question Is option d

Ans 2:

A Kumar from SNSVM, East Singhbhum
Class : Class 8
A.at the equator only

Ans 3:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
D is answer as low pressure exists both in equator and 60° lattitude

Ans 4:

SANVI from D PS VADODARA, Vadodara
Class : Class 9
if you are showing this answer wrong in Olympiad training paper and if we get the same question in examination which answer will be accepted as correct?

Ans 5:

Arnav Ranka from Gyan Bharati School, Saket, New Delhi
Class : Class 9
Both the science and geography textbooks of NCERT state that there is low pressure at 60 degree North and South also. So, the answer is D.

Ans 6:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
answer is D why have they written A . A is the wrong answer

Ans 7:

Prashanth Adamane from FreedomInternational School, Bengaluru
Class : Class 6
How is it a?

Ans 8:

Tanushree from Asian International School, Colombo
Class : Class 7
It has to be D

Ans 9:

Rishith Sunil from BVM global, CHENNAI
Class : Class 6
The answer is D as low pressure exists in both equator and 60 degree north and south.

Ans 10:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
the answer cannot be a....it is d

Ans 11:

Agastya from NCS Arakkonam, Chennai
Class : Class 8
it should be D

Ans 12:

Akshara from NPS, Bengaluru
Class : Class 8
Answer should be D only . There is low pressure at the equator and at 60 degree north and south pole

Ans 13:

Netra Goyal from Presidency School, Bangalore
Class : Class 6
yes, the correct answer is D since there are two belts of low pressure on the earth. on the equator (due to high temperature) and between the two belts of high pressure (60 degrees North and South. ). A cannot be the correct answer.

Ans 14:

Gatik Arora from Vivek High School, Mohali
Class : Class 4

Ans 15:

Prashanth Adamane from FreedomInternational School, Bengaluru
Class : Class 6
How is it a?

Ans 16:

Arushi from Indira National School, Pune
Class : Class 9
it should be d

Ans 17:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
It is d

Ans 18:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
at equator only

Ans 19:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
It should be d if referred to any books in this world

Ans 20:

sk from psbb millennium school, Chennai
Class : Class 9
'tis D

Ans 21:

Archisman Biswas from Santipur Municipal High School, Nadia
Class : Class 9
The answer should be D.

Ans 22:

Bhuvana Kumar Gopal from St Thomas Residential School, Trivandrum
Class : Class 5
It should be D, as per the SOF Foundation Text.

Ans 23:

Gouresh Pranay Teli from Don Bosco, Kudal
Class : Class 7
answer should be D

Ans 24:

Anahita Baruah from DPS Bangalore East, Bengaluru
Class : Class 3
It is D for sure

Ans 25:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
DDDDDD!! Olympiad Trainer pls check and give the correct answer!!

Ans 26:

Ankush Ghosh from DPS, Doha
Class : Class 10
Its D Peeps from SOF. Check ur ansers

Ans 27:

Mayank Mili from Delhi Public School, Golaghat
Class : Class 9
Please correct the answer. I think the answer should be D.

Ans 28:

pranav M from chennai public school, Chennai
Class : Class 7
it has to be d

Ans 29:

Gauhar S Iqbal from Geethanjali Olympiad School, Bangalore
Class : Class 9
D. At the equator and at 60 degree north and south pole

Ans 30:

from Podar International School,Dhule, Dhule
Class : Class 8
answer definitely option d

Post Your Answer

Khushi bhalla from Dasmesh public school faridkot, Faridkot
Subject :NSO    Class : Class 8

Ans 1:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida
Class : Class 10

Ans 2:

ANUBHA MAHAJAN from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 10

Ans 3:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7

Ans 4:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9

Ans 5:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
A protozoan or alga isn't considered as a connecting link between living and non-living things. A virus is considered so, which is Diagram S. Admin from Revisewise Noida is kindly requested to explain how A is going to be the correct answer.

Ans 6: (Master Answer)

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

Ans 7:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8

Ans 8:

cherry from atomic energy central school-4, mumbai
Class : Class 9
isnt penicillin prepared from mould?

Ans 9:

Student from School, City
Class : Class 8

Ans 10:

Student from School, City
Class : Class 8
a

Ans 11:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9

Ans 12:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida
Class : Class 10
penicillin is prepared from mould,penicillium notatum and penicillium chrysogenum

Ans 13:

The Address from Somaiya, Mumbai
Class : Class 6

Post Your Answer

Jaanya Vijh from DPSG Meerut Road, Ghaziabad
Subject :NSO    Class : Class 5

Ans 1:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Ans 5 is right and so are the answers SOF is wrong. And ans 1 I think u need to tell that to some elder

Ans 2:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
Hey Rayansh you and SOF are wrong. I will tell mam that you told wrong answers

Ans 3:

Chaitanya from TSMS, noida
Class : Class 5

Ans 4:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
Guys - NOT SOF but you all are wrong. I reviewed the question and saw it was written - A ball has started from a hill. Where will it be the fastest or where is the most kinetic energy so it is A. point W. If it was from which point should it start to reach the flag the fastest it would be D

Ans 5:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
answer is D

Ans 6:

NeilRaphaelVeigas from Rockwell International School, Hyderabad
Class : Class 6
Last time I tried, it said option (d), but now it's option(a)? How come?

Ans 7:

Pratham Dave from GNS, Bangalore
Class : Class 7
D is the answer to this question but it is showing A as correct option

Ans 8:

Deepika Goyal from Neerja modi school, Jaipur
Class : Class 7
ANSWER IS D

Ans 9:

Adwik Bairagi from DPS Newtown, KOLKATA
Class : Class 5
Well, isn't Option A the place where it slows down 'cause that's the point where the low slope starts so I thought it would be point X (Option B)

Ans 10:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Answer is D and nothing ! nothing ! nothing !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!SOF is wrong ! wrong ! wrong !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 11:

Ayush Yadav from Salwan Public School, Gurgaon
Class : Class 6

Ans 12:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Post Your Answer