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Krishiv Goyal from Ridge Valley School, Gurgaon
Subject :NSO    Class : Class 6

Read the following passage carefully.
P helps to maintain strong eyesight and healthy skin. Q is required for normal growth of bones and teeth in children. R is essential for proper functioning of muscles and nerves. S is needed for natural clotting of blood.
Identify P, Q, R and S and select the incorrect statement regarding these.

A Q is produced when the skin is exposed to sunlight.
B R is a mineral, deficiency of which causes spasms, poor digestion, anxiety and sleeplessness.
C Cod liver oil is a good source of both P and S.
D S is synthesised in our body by bacteria present in the gut.


Ans 1:

khushi Joshi from Svkm , Mumbai
Class : Class 7

Ans 2:

SAMIKSHA PATIL from CITYPRIDE SCHOOL, CHINCHWAD
Class : Class 6

Ans 3:

Ritabrata Das from OPJS, Angul
Class : Class 6
what is gut??????

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Aarushi Batra from DPS north Banglore , Banglore
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

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

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Aryan Sirohi from Mount LItera Zee School, Bangalore
Subject :NSO    Class : Class 5

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KISHORE KUMAR E from MAHARISHI INTERNATIONAL RESIDENTIAL SCHOOL, SUNGUVARCHATHIRAM
Subject :NSO    Class : Class 8

Ans 1:

Anushka Singh from Uttam Girls School, Ghaziabad
Class : Class 9
Melamine resits fire and firefighers also wear their suits made up of melamine.

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Shwetha from DAV, Nerul
Subject :NSO    Class : Class 1

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Annika Tikkha from Apeejay School, Noida
Subject :NSO    Class : Class 9

Ans 1:

Karishma from KV mohanbari , Dibrugarh
Class : Class 9
(A) > 12u*60+1u*22=742u i. e. 742* mass of 1u (1.6605x10 to the power - 24) = answer A (approximate value)

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Annika Tikkha from Apeejay School, Noida
Subject :NSO    Class : Class 9

Ans 1:

om subham pati from Dps ranchi, Ranchi
Class : Class 10
assuming everything at STP H2O+CO is 250liters total mile of mixture =250/22.4 =11.16mole bothCbothCO AND H2 have same numbenumber of mole so.indvidual no of mole=11.16/2=5.58 H2+co+O2=H2O+CO2 BY stechiometry no of moles of H2O gas is also5.58. vol of H2O is 5.58×22.4 approximately 125liter

Ans 2:

Annika Tikkha from Apeejay School, Noida
Class : Class 5
how to solve

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AMAN SAIKIA from DELHI PUBLIC SCHOOL DULIIAJAN, DULIAJAN
Subject :NSO    Class : Class 6

Ans 1:

Annika Tikkha from Apeejay School, Noida
Class : Class 5
3/4th

Ans 2:

PRANEEL PRIYASH PANDA from AECS NARORA, BULANDSHAHR
Class : Class 6
It will A because earth got 75% of water and it is 3/4 of it.

Ans 3:

PRANEEL PRIYASH PANDA from AECS NARORA, BULANDSHAHR
Class : Class 6
It will A because earth got 75% of water and it is 3/4 of it.

Ans 4:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 5
answer is 3 /4th

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Kavitharini Joseph from Hiranandani Upscale School, Chennai
Subject :NSO    Class : Class 4

Ans 1:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
B because in the first statement,if the grass population will decrease,rabbit population will also decrease as the rabbit exclusively feeds on the grass population and wolf exclusively feeds on the rabbit population.In the second statement,if the tiger population will increase,the rabbit population will decrease as the tiger exclusively feeds on the rabbit population and wolf exclusively feeds on the rabbit population.In the third statement,if the deer population will decrease,the wolf population will decrease as wolf feeds on the deer population.In the fourth statement,if the rabbit population will increase,the wolf population will also increase as wolf feeds on the rabbit population.

Ans 2:

BV Karthikeya from Sentia, Hyderabad
Class : Class 5
b

Ans 3:

Uditangshu Mondal from The Heritage School, Rampurhat
Class : Class 4
b

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Hritikrishna Panigrahi from Podar International School, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Pratul Kumar Sahoo from Presidium, Gurugram
Class : Class 4
d

Ans 2:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 5
Option A says involuntary muscles are controlled by brain. It is correct as medulla controls all our involuntary actions. Option B and C are correct as the cardiac muscles are also called as smooth muscles, so statement d is incorrect as the muscles present in our arms and legs are called skeletal or voluntary muscles

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