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Rehan Agrawal from Indian School Ghubra, Muscat
Subject :NSO    Class : Class 8

Ans 1:

Rehan Agrawal from Indian School Ghubra, Muscat
Class : Class 10

Ans 2:

Spandan Trivedi from D.A.V. International School, Ahmedabad
Class : Class 8
Yes answer is D

Ans 3:

Arnav Gangwar from DPS NOIDA, GAUTAM BUDH NAGAR
Class : Class 8

Ans 4:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
The answer is A.

Ans 5:

vedant from st john senior secondry school, greater noida west
Class : Class 7
Answer is d

Ans 6:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
How can the direction of friction be towards east? It should always act in the direction opposite to that of the direction of the moving body, i.e., friction should act towards the west irrespective of whether the vehicle is accelerating or retarding. So the correct answer should be D!

Ans 7:

Rishi Gopi from Loyola, Trivandrum
Class : Class 9
The correct answer is d as friction acts opposite to the direction of the applied force

Ans 8:

Anirudh from 989820Delhi Pubic school Rohini , Delhi
Class : Class 8
D

Ans 9:

Rishi Gopi from Loyola, Trivandrum
Class : Class 9

Ans 10:

Chatresh ramasai gudi from Bgsnps , Bangalore
Class : Class 8
The answer should be D

Ans 11:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 9
see guys, i think u all are mistaken. We dont consider in what direction the car is going, but in which direction the wheel is turning. for the car to go forwards, the wheel must roll clockwise. so for the car to go east, wheel must roll in the clockwise direction. Now consider a very small part of the wheel which is touching the ground. to wheel to roll in clockwise direction , that small part must slide backward, and that must continously happen in order for wheel to turn clockwise and car to go in east direction. And u know, friction is b/w the surface in contact, i.e the rolling part of the wheel, not with the car. so friction should oppose the backward-going part of the wheel, and thus in the ame direction with the motion of the car. if friction were to be in west, the car would never go in east direction, because the wheel would'nt have any force to oppose, to make it go in that direction, and thus the car would never be able to go towards the east direction!

Ans 12:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
the answer is D but is given wrong in this question .

Ans 13:

Mridul Jain from Shishukunj International School Indore, Indore
Class : Class 9
I'm confused about the same thing...friction opposes relative motion, so it will obviously be towards west??

Ans 14:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 15:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
I ALSO THINK THE ANSWER IS D

Ans 16:

Aanya from DAV, Gurgaon
Class : Class 8
I think that option "D" is the correct answer as friction is always opposite to direction of motion of the object

Ans 17:

Vayun from NPS HSR, Bengaluru
Class : Class 8
Answer is D

Ans 18:

Palchin from Naval public school, Uran
Class : Class 8
the answer has to be d because friction always oppose the relative motion of an object no matter if it accelerates or not.

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Swarnava Pal from Vivekananda Mission School, Haldia
Subject :NSO    Class : Class 4

Ans 1:

Shaurya from Modern Public School, Bhiwadi
Class : Class 7
C because 25341 spells stick

Ans 2:

Shaurya from Modern Public School, Bhiwadi
Class : Class 7
C

Ans 3:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
25341

Ans 4:

Dakala Murari from Indian school of excellence, Bangalore
Class : Class 4
c

Ans 5:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
25341

Ans 6:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
it is wrong

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Ajoy Bhuyan from Delhi public school, Bongaigaon
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
DDD

Ans 3:

Rahul from Cambridge school, noida
Class : Class 4
Explain PleaseI need the explaination

Ans 4:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4
B is the answer

Ans 5:

Ajoy Bhuyan from Delhi public school, Bongaigaon
Class : Class 4

Ans 6:

ANAY GUPTA from CMS KANPUR ROAD LUCKNOW, LUCKNOW
Class : Class 8
d is the right answer

Ans 7:

anu from Haralur, Bengaluru
Class : Class 4
what they've went and done is put exxxtra optionsss! Real irratating

Ans 8:

anu from Haralur, Bengaluru
Class : Class 4

Ans 9:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 10:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
d

Ans 11:

Ashwak from Cambridge, Jalandhar
Class : Class 8
D

Ans 12:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4

Ans 13:

anu from Haralur, Bengaluru
Class : Class 4

Ans 14:

Samarth Vijay Yeliathaya from Shri Kumarans Children home,cbse, Bangalore
Class : Class 5
d

Ans 15:

Krishiv Chandan Sukul from Seven 11 Scholastic School, Mumbai
Class : Class 5
YOU! An admin from Revisewise, you don't even own up to SOF's mistake.Da questions do not show properly and you think I'm responsible!

Ans 16:

Adway Bachchan from Indian School Sohar, Sohar
Class : Class 8

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Sutirth Badu from Sherwood High, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7

Ans 2:

k tagore from montessori school, KURNOOL
Class : Class 3

Ans 3:

Aaditva from Vasant Valley School, New Delhi
Class : Class 7
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 4:

vineet8026@gmail.com from dps, Doha
Class : Class 1
A

Ans 5:

Aaditva from Vasant Valley School, New Delhi
Class : Class 7
How a Vineet?

Ans 6:

Kairav Gupta from Bombay Scottish School, Mahim, Mumbai
Class : Class 4
Answer has to be option B

Ans 7:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4

Ans 8:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6

Ans 9:

Koyel Biswas from Adamas World School, Kolkata
Class : Class 5
option b

Ans 10:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7
d

Ans 11:

shivansh from apeejay school, noida
Class : Class 5
It's answer should be B option

Ans 12:

Kairav Gupta from Bombay Scottish School, Mahim, Mumbai
Class : Class 4
The answer should be option C

Ans 13:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
B

Ans 14:

VAIBHAV DINESH from Christ Nagar HSS, TRIVANDRUM
Class : Class 4

Ans 15:

EKLAVYA GONDULE from DPS BHILAI, Bhilai
Class : Class 7

Ans 16:

Syon from Sentia The Global School, Hyderabad
Class : Class 8

Ans 17:

Ayushi from DPS Noida, Noida
Class : Class 4
ans b is the answer......

Ans 18:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
SOF Trainer Is Saying Option D But I Think It Is Option C

Ans 19:

Rahul from Cambridge school, noida
Class : Class 4
Olympiad trainer is saying wrong it would be B bcoz it is 18....

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

Ans 2:

from , Hajipur
Class : Class 8
a is answer

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Select the incorrect statements among the following:
(i) Bitumen is used for metalling the roads.
(ii) Some inexhaustible natural resources like coal, petroleum and natural gas formed from the dead remains of living organisms are known as fossil fuels.
(iii) Many useful substances are obtained from coal (commercial importance), so it is also called as ‘Black gold’.
(iv) Natural gas is used as a starting material for the manufacture of a number of chemicals and fertilisers.

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


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Ashwin Shridhar from Vidyashilp Academy, Bangalore
Subject :NSO    Class : Class 7

Ans 1:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
I think the answer should be c .

Ans 2:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 3:

shweta garg from Apeejay School, Ghaziabad
Class : Class 7
c c c c c c c c c c c c c c c c c c c cc c c c c c c c c c c c c it should be c

Ans 4:

Midhuna from ABCD, Banglore
Class : Class 3
I have one thing to say the answer is C

Ans 5:

Nandu from The Asian School, Bahrain
Class : Class 3
ANS MUST BE Opt C

Ans 6:

Admin fly from Ddssxxx, Ax
Class : Class 1
THE ANSWER SHOULD BE C !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 7:

Shreya Sudarshan from RVK - Banashankari, Bengaluru
Class : Class 7
would'nt the answer be c ?because kangaroo rats consume water in very limited wayand slow their metablic rate.

Ans 8:

Midhuna from ABCD, Banglore
Class : Class 3
no, I changed my answer there is a misconception that camels drink less water.A camel's water intake varies according to his environment, his exertion level, and the amount of fat in his hump. A thirsty camel can drink more than 30 gallons of water in less than 15 minutes. 1.1 A typical camel can drink 200 liters (53 gallons) of water in three minutes. they drink a lot of water but can also go a long time without drinking water...hope it helps

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Ashwin Shridhar from Vidyashilp Academy, Bangalore
Subject :NSO    Class : Class 7

Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

(i) North-East India receives very little rain throughout the year, so we can say that climate in North-East India is hot and dry.
(ii) Thick layer of subcutaneous fat, thick skin and a dense feather cover in polar birds like penguins protect them from severe cold weather.
(iii) Polar animals need to conserve water due to water scarcity.
(iv) As we move higher up from sea level temperature becomes lower.

(i) (ii) (iii) (iv)
A F F T T
B F T F T
C F F T F
D T T F T


Ans 1:

Admin fly from Ddssxxx, Ax
Class : Class 1

Ans 2:

Surya from INDIAN SCHOOL JALAN OMAN, Alkamil oman
Class : Class 7
it is wrong because north east India receives less rainfall as rajasthan is in north east india

Ans 3:

Admin fly from Ddssxxx, Ax
Class : Class 1
NA

Ans 4:

Venya Vikas from Chirec International , Hyderabad
Class : Class 7
It should be option A

Ans 5:

Tanushree from Asian International School, Colombo
Class : Class 7

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Shreya Mahesh from Sri Sri Ravishankar Vidya Mandir, Bangalore
Subject :NSO    Class : Class 8

Ans 1:

Labonyo Sen from Calcutta Girls High School, KOLKATA
Class : Class 8
Cholera and typhoid

Ans 2:

Labonyo Sen from Calcutta Girls High School, KOLKATA
Class : Class 8
Cholera and typhoid

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Ajoy Bhuyan from Delhi public school, Bongaigaon
Subject :NSO    Class : Class 4

Ans 1:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7

Ans 2:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
t

Ans 3:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

Ans 4:

Rounak J from Silver Oaks School , Hyderabad
Class : Class 8
The correct answer is B.

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