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

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Sargah Surya from bgsnps, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Stuti Chakroborty from Jain Heritage School, Bangalore
Class : Class 6

Ans 2:

Aryan Agarwal from Mayoor School, Noida
Class : Class 8

Ans 3:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9

Ans 4:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
The correct and is D as the magnetic field moves from North to south

Ans 5:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9

Ans 6:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10

Ans 7:

Aarushi Upadhyayula from The Cambridge International School, Bengaluru
Class : Class 7
The answer D is correct. Magnetic field moves from North to South, and if you follow the direction of the compasses, you will see that this theory is true.

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MARIA K PAUL from DON BOSCO SCHOOL OF EXCELLENCE EGMORE, CHENNAI
Subject :NSO    Class : Class 6

Ans 1:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 2:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
no because what will u do of zero u have to

Ans 3:

aritroray from Chirec International School, Hyderabad
Class : Class 8
I think it should be C because otherwise the zero end can shift slightly (in our viewpoint) and measurement will be wrong. So both statements a and b are correct and the answer is C.

Ans 4:

sujata patel from Podar International, Pune
Class : Class 6
it is simple that while measuring, at first you eye must be vertically above 0

Ans 5:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10
GIVEN ANSWER IS NOT CORRECT AS A IS THE CORRECT ANSWER

Ans 6:

atharv nila from VIBGYOR, Bengaluru
Class : Class 6

Ans 7:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore
Class : Class 8

Ans 8:

Rahil from Delhi Public School Faridabad, Faridabad
Class : Class 7
No as it causes a parallax error. It should be option A. If you don't believe me then try it yourself with a scale and measuring a line segment from different eye positions. You will see that, the measurement varies slightly every time. That's why option A is correct.

Ans 9:

Mansi Sadavarti from Vibgyor High, Pune
Class : Class 7
I agree with Aritroray the answer should be C

Ans 10:

sujata patel from Podar International, Pune
Class : Class 6
cccccccccccc

Ans 11:

AUSTIN from Viswajyothi CMI Public School, Chowara
Class : Class 7
i think its C

Ans 12:

chittaranjan kar from MLZS, Jaipur
Class : Class 3
No guys. Human eye can't focus simultaneously on two points. To avoid parallax error , eye should be on the point of measurement to be taken.Hence given answer is correct in my view. You may comment.

Ans 13:

from , Jajpur
Class : Class 6
the answer will be both a and b

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Sargah Surya from bgsnps, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9

Ans 2:

Admin fly from Ddssxxx, Ax
Class : Class 1
A

Ans 3:

Rahil from Delhi Public School Faridabad, Faridabad
Class : Class 7
A as image is as far behind the mirror as Object is in front of it. In this case Sachin is 3 m in front of the mirror and the object seems to be seven meters ahead. As Sachin is 3 m in front of the mirror that means object is (7-3) = 4 m behind the mirror. As image is as far behind the mirror as Object is in front of it, It means chart is 4 meters in front of the mirror. ( 4 - 3 ) = 1 m behind Sachin as Sachin is also in front of the mirror. Hope that answers your question !

Ans 4:

Nandan Makineni from VIBGYOR HIGH, Bangalore
Class : Class 6

Ans 5:

ttraj from KV IIT, Chennai, Chennai
Class : Class 3
A

Ans 6:

Admin fly from Ddssxxx, Ax
Class : Class 1

Ans 7:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
A

Ans 8:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, let’s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m – 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m – 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

Ans 9:

Aarohi Srihari Torgal from V.V.S B.M Sri Educational Institutions , Mysure
Class : Class 6
A

Ans 10:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7

Ans 11:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9

Ans 12:

arnav from Dps noida, Delhi
Class : Class 8
a

Ans 13:

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

Ans 14:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Sachin is being tested for his eyesight by an optician.Now, let’s read the given information carefully, and find out the position of Sachin.Sachin sits 3 m in front of a plane mirror, and looks at the image of the chart of letters, which seems to be 7 m in front of him.This means the distance between the mirror and the image of the chart is (7 m – 3 m = 4 m). If the image of the chart is 4 m behind the mirror, then the actual chart is placed 4 m in front of mirror.Now the chart is placed 4 m in front of the mirror, and Sachin is sitting 3 m in front of the mirror. That means the chart is placed (4 m – 3 m = 1 m) behind Sachin. Hence, the right answer is Option A.

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Deeptajit Roy from Gems Modern Academy, Dubai
Subject :NSO    Class : Class 5

Ans 1:

Achyut Prasad from Prabhujee English Medium School, Bhubaneswar
Class : Class 5
Ans is C potato is stem and sugar cane also stem

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10

Ans 3:

Dhruv Osekar from Mitra Academy, Bangalore
Class : Class 5

Ans 4:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
yes ,you are rightans is c

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Ans 1:

Prayaan handel from Billabong high international school, Bhopal
Class : Class 4
how about B

Ans 2:

Kashika Goel from DPS Noida, Noida
Class : Class 7
B is not correct as it is gravity that causes objects to fall on the ground

Ans 3:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8

Ans 4:

Vineet Banode from New Horizon Scholars School, Pune
Class : Class 5
Yes how it can be C ?

Ans 5:

Kashika Goel from DPS Noida, Noida
Class : Class 7
frictional force is answer prevents from slipping

Ans 6:

Raghav Agarwal from Dinobli School, jharia
Class : Class 4
How is it C

Ans 7:

Kashika Goel from DPS Noida, Noida
Class : Class 7
B is not correct as it is gravity that causes objects to fall on the ground

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 9

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

Ans 1:

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

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

lavanya from bcm chd road, Ludhiana
Class : Class 5

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:

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

Ans 9:

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

Ans 10:

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 11:

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

Ans 12:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4
But no spider species have 6 legs

Ans 13:

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.

Ans 14:

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

Ans 15:

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 16:

Bharat Aggarwal from Kalyani school, Pune1
Class : Class 4
But no spider species have 6 legs

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

Ans 1:

Krishika Madan Shanmugam from National Public School, Bangalore
Class : Class 4
ans is b

Ans 2:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

Ans 3:

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

Ans 4:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

Ans 5:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

Ans 6:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

Ans 7:

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

Ans 8:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
wth

Ans 9:

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

Ans 10:

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

Ans 11:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5
I did it with a guess and got it right somehow!

Ans 12:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

Ans 13:

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

Ans 14:

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 15:

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

Ans 16:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
kn

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Advait talnikar from Dhruv Global School, Sangamner
Subject :NSO    Class : Class 6

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Akshara Singh Virk from DPS , Sec 47, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Gunnika from MVN, Faridabad
Class : Class 3
is it option C ?

Ans 2:

Aneesh Balaji from BVBARR school, Hyderabad
Class : Class 9
d

Ans 3:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
D

Ans 4:

Nishant Hazarika from Air Force School, Dibrugarh
Class : Class 3
Answer can be A also as Q can be duck and P can be penguin and both of them have webbed feet and penguins live in places like Antartica.

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