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

User Forum

Ask Your Question
Ankita Dharmani from Euroschool, Mumbai
Subject :NSO    Class : Class 5

Post Your Answer

Nishant Doshi from new era senior secondary school nizampura vadodara, Vadodara
Subject :NSO    Class : Class 5

Ans 1:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 5
you are correct it doesnt update it self every year

Ans 2:

Bhavya from ABC, Delhi
Class : Class 5
ANSWER IS 'D'

Ans 3:

Swastik Srivastava from Baldwin Boys High School, Bangalore
Class : Class 5
no c is correct ans

Ans 4:

Arav Singh from Jyoti Niketan School, Azamgarh
Class : Class 6
ans d

Ans 5:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 5
D drives me crazy

Ans 6:

Sanskriti Nagar from Rose Bud Academy, khagaria
Class : Class 5
answer is D

Ans 7:

Ayan from Oakridge International School, Bangalore
Class : Class 5

Ans 8:

Dibyajyoti Das from DAV PUBLIC SCHOOL, Bhubaneswar
Class : Class 5
D

Ans 9:

Ayan from Oakridge International School, Bangalore
Class : Class 5
ans is d

Ans 10:

Dibyajyoti Das from DAV PUBLIC SCHOOL, Bhubaneswar
Class : Class 5
D

Ans 11:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 5

Ans 12:

Vyapti Rawat from ST MARY, NEW DELHI
Class : Class 5
ans is d

Ans 13:

Arav Singh from Jyoti Niketan School, Azamgarh
Class : Class 6

Ans 14:

hritika from DAV public , Bihar Sharif
Class : Class 4
The answer is {D}

Ans 15:

Mannan from Sherwood High, Bengaluru
Class : Class 6
sof is dumb nearly all answers are given wrong

Ans 16:

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

Post Your Answer

Kushagra Shukla from Presidium dwarka, New Delhi
Subject :NSO    Class : Class 5

A large area of forest was destroyed completely by forest fire. Which of the following statements hold(s) true regarding it?

(i) More soil will be eroded as the soil is not protected by trees from wind and rain.
(ii) The land will have more fresh air as there are lesser trees to take in oxygen.
(iii) Wildlife will inhabit the cleared area because more space is available now.
(iv) New trees will grow quickly to replace the burnt ones as the ash of the burnt trees will make the soil more fertile.

A (i) only
B (i) and (iv) only
C (i), (ii) and (iv) only
D (i), (ii), (iii) and (iv)


the answer should be option B not A because ash does act like a natural fertiliser ,. I have already searched on the internet .

Ans 1:

Yashasvika from Euro World School, Sri Ganganagar
Class : Class 5
How ??? It should be b.As ash is an organic matter. the process of nitrogen fixation will make the soil fertile . Please tell .Why????

Ans 2:

Snow White from Le Setea , Paris
Class : Class 4
Answer is B as ash is an organic

Ans 3:

MAYANK SAH from DPS KALALI VADODARA, VADODARA
Class : Class 7
i think the answer should be B because the statement 'New trees will grow quickly to replace the burnt ones as the ash of the burnt trees will make the soil more fertile' is also true

Ans 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 5
SOF is giving wrong answers ! Does it ever thinks that by reading wrong things , we can get lesser marks in our exams ?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Ans 5:

rishi karthik from Bvm Global, chennai
Class : Class 5
It is certainly B as ashes of any organic matter makes soil fertile.

Ans 6:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
THe AntwerpThe answer is (A) because if forest fire occurs there will not be any trees and soil erosion can happen and All the ashes including soil may erode and then how can it make the soil fertile

Ans 7:

Ayush Pal from DPS north kolkata, west bengal, India, Kolkata
Class : Class 5
Answer must be B as it is organic and increases soil fertility.

Ans 8:

Snow White from Le Setea , Paris
Class : Class 4
Ash is an organic matter so the answer should be B

Ans 9:

Yashasvika from Euro World School, Sri Ganganagar
Class : Class 5

Ans 10:

sankerths s from Shishya BELM public School, Bangalore
Class : Class 5
I agree ,B is the correct answer

Ans 11:

ESWAR RAMAGOPAL REDDY SABBELLA from SENTIA THE GLOBAL SCHOOL, HYDERABAD
Class : Class 6
I think the answer should be b as after a forest gets destroyed by a forest fire ,new trees will grow as the remain of the trees will decompose and make the sol fertile.

Ans 12:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 5

Ans 13:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
yes B is the answer as the ash contains minerals from the other trees.. i agree that the process of nitrogen fixation will make the soil fertile.........

Ans 14:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 5
a is correct because there willbe soil erosion without trees

Ans 15:

Sanskriti Nagar from Rose Bud Academy, khagaria
Class : Class 5
The correct answer is Bthis time I think SOF is wrong

Ans 16:

ARCHISHA SIKDAR from CHOITHRAM MANIKBAG, INDORE
Class : Class 5
B IS THE CORRECT ANSWER AS BURNING OF WASTE CROPS AFTER HARVESTING OF GRAINS IS STANDARD METHOD OF INCREASING SOIL FERTILITY

Ans 17:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
B B B B B B . B B B B B B BB BB B B B B B . IS THE ANSWER

Ans 18:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 5
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Ans 19:

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

Ans 20:

Saani from Cambridge School, Mangalore
Class : Class 1

Ans 21:

Omar Faruq Molla from ITL Public School, Delhi
Class : Class 4
B is the correct answer

Ans 22:

Sohan Choudhury from Delhi Public School Electronic City Bengaluru, Bengaluru
Class : Class 6
i think it should be B..as ash acts as a fertilizer.

Ans 23:

DAIVIK AMBATI from Kendriya Vidyalaya, Dharwad, Dharwad
Class : Class 5
I think the answer is B

Ans 24:

Yajat Manoj from Vibgyor, Bengaluru
Class : Class 5
BBBBBBBBBBBBBBBBBB IT IS THE CORRECT ANSWER I AGREE WITH THE OTHERS

Ans 25:

Aishee Sarkar from St. Stephens School , Kolkata , West Bengal, Kolkata
Class : Class 4
I think B is the correct answer

Ans 26:

Saloni Saini from JPHS, Jaipur
Class : Class 6
B should be the correct answer

Ans 27:

NeilRaphaelVeigas from Rockwell International School, Hyderabad
Class : Class 6
Come on Snigdha! The CORRECT ANSWER IS (B)! Ash makes soil fertile 'cause it's organic , dude! How will trees not grow?(P.S.- please don't think about Ash in Pokemon. Please, don't)🤦‍♂️🤦‍♂️

Post Your Answer

B LOHITH from CHRIST PUBLIC SCHOOL, Mysore
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

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

Post Your Answer

Kushagra Shukla from Presidium dwarka, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Adrija Pandey from SSRVM Bhugaon Pune, Pune
Class : Class 5

Ans 2:

Ankita Dharmani from Euroschool, Mumbai
Class : Class 8
Answer: C

Ans 3:

Ankita Dharmani from Euroschool, Mumbai
Class : Class 8
Answer: C

Ans 4:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
Answer-C

Ans 5:

Debeesmita Lenka from DAV PUBLIC SCHOOL CHANDRASEKHARPUR, BHUBANESWAR
Class : Class 5
ANSWER-C

Post Your Answer

Aditya Prasad from Notre Dame , Gumla
Subject :NSO    Class : Class 9

Post Your Answer

Aditya Prasad from Notre Dame , Gumla
Subject :NSO    Class : Class 9

Post Your Answer

Aditya Prasad from Notre Dame , Gumla
Subject :NSO    Class : Class 9

Post Your Answer

AKSHITA DIXIT from R K SARDA VIDYA MANDIR, RAIPUR
Subject :NSO    Class : Class 6

Ans 1:

from Gitanjali Public School ,
Class : Class 8
option d is the correct answer

Ans 2:

Rishit Verma from CMR NPS, Bengaluru
Class : Class 6
The answer is (c) Condition 1- There should be an area which includes all the shapes [options (b), (c) and (d) satisfy this condition] Condition 2- There should be an area which includes only the circle and triangle [only option (c) satisfies this condition] Therefore option (c) is correct

Post Your Answer

NIRMAY JOSEPH from DON BOSCO PARK CIRCUS, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Ayush Singh from LMB, Kolkata
Class : Class 4

Ans 2:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 5
option D

Ans 3:

Vibha from Birla Public School, Doha
Class : Class 4
THE ANSWER IS THE OPTION D

Ans 4:

Snow White from Le Setea , Paris
Class : Class 4
The solution is correct . The correct answer is D

Ans 5:

Snow White from Le Setea , Paris
Class : Class 4
The correct answer is D

Ans 6:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
I DONT KNOW

Ans 7:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4
What is this?Well,the synponis does not say anything like this.How do you know?And Harry (Potter), I think you should really provide explanations when you say something like this.I think you don't provide explanations ever.

Ans 8:

ASHMI Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
See this Refer to the solution

Ans 9:

Vansh from DPS noida, Noida
Class : Class 4
[url=http://ashematme.ru]ashematme.ru[/url]

Post Your Answer