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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:

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 2:

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

Ans 3:

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

Ans 4:

Aryan Agarwal from Mayoor School, Noida
Class : Class 8

Ans 5:

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.

Ans 6:

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

Ans 7:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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 5:

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 6:

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 7:

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

Ans 8:

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 9:

atharv nila from VIBGYOR, Bengaluru
Class : Class 6

Ans 10:

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

Ans 11:

Rithvik Chandra from Greenwood High School, Bangalore
Class : Class 6
this is basic 6th grade physics, you cannot always be measuring 0cm, so as to avoid parallax error your eye must be placed right above the scale, if you do not beleive me ask your science/physics teacher. Hence it is A.

Ans 12:

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

Ans 13:

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

Ans 14:

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

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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:

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

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

arnav from Dps noida, Delhi
Class : Class 8
a

Ans 9:

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

Ans 10:

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 11:

Admin fly from Ddssxxx, Ax
Class : Class 1

Ans 12:

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 13:

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

Ans 14:

Nandan Makineni from VIBGYOR HIGH, Bangalore
Class : Class 6

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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:

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

Ans 4:

Dhruv Osekar from Mitra Academy, Bangalore
Class : Class 5

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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:

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

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 6:

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 7:

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

Ans 8:

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

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

Ans 1:

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 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

Advait Kumar Mangalik from The S D Public School, Muzaffarnagar
Class : Class 4
Keanna you are a copycat

Ans 8:

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 9:

lavanya from bcm chd road, Ludhiana
Class : Class 5

Ans 10:

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

Ans 11:

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 12:

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

Ans 13:

aurik mittal from mayor world school, jalandhar
Class : Class 5
questio is wrong

Ans 14:

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

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:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
wth

Ans 5:

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

Ans 6:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 7:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 6
I did it with a guess and got it right somehow!

Ans 8:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 9:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 10:

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

Ans 11:

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 12:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 13:

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

Ans 14:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
kn

Ans 15:

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

Ans 16:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
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:

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

Ans 3:

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.

Ans 4:

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

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