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Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Subject :NSO    Class : Class 5

Ans 1:

Ankush Negi from Dehradun world school, Dehradun
Class : Class 7
Global warming

Ans 2:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
nitrogen and sulphur are not greenhouse gases so NOT global warming

Ans 3:

Saransh Singhania from Vidya Mandir estancia, Chennai
Class : Class 8
cccccccccc

Ans 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Globallllllllllllllll warminggggggggg

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Vedang Amonkar from Dr K B Hedgewar High School, Panaji
Subject :NSO    Class : Class 6

Given below are the four food components (P-S) and their corresponding sources.
P – Meat, Fish, Egg
Q – Butter, Ghee, Margarine
R – Bread, Biscuit, Potato
S – Amla, Tomato, Orange
Select the incorrect statement regarding them.

A Deficiency of P causes marasmus in children whereas deficiency of Q causes kwashiorkor in adults.
B Among P, Q, R and S, 1 gram of Q produces the maximum energy.
C Excess of R gets stored in body cells and is used for production of energy whenever required.
D Deficiency of S leads to a disease in which gums swell up and bleed.


Ans 1:

Vedang Amonkar from Dr K B Hedgewar High School, Panaji
Class : Class 6
P is protein, Q is fat, R is carbohydrate and S is vitamin C. Deficiency of proteins causes kwashiorkor whereas marasmus is caused by deficiency of proteins along with carbohydrate. Marasmus occurs in children usually in infants below the age of 1 year and kwashiorkor occurs in children.

Ans 2:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 8

Ans 3:

Sai Trinayanee from NPS, Chennai
Class : Class 6
Vedang Amonkar your answer is same as the solution

Ans 4:

saikrishna from bharatiya vidhya bhavans public school, Hyderabad
Class : Class 9

Ans 5:

saikrishna from bharatiya vidhya bhavans public school, Hyderabad
Class : Class 9

Ans 6:

Ayan Vohra from Bhavan Vidyalaya , Chandigarh, chandigarh
Class : Class 7
umm............ SOF where is my solution?

Ans 7:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
Vedang your answer is in the solution

Ans 8:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9

Ans 9:

Raksheet Shah from Swami Vivekanad International School, Mumbai
Class : Class 8

Ans 10:

Vedang Amonkar from Dr K B Hedgewar High School, Panaji
Class : Class 6
hey????!!!! Oh.......... Umm its me only.

Ans 11:

Sai Trinayanee from NPS, Chennai
Class : Class 6
Good explanation

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Saiesh from Sindhi high school, Bangalore
Subject :NSO    Class : Class 4

Advika took a Croton plant with shaded leaves and set up an experiment as shown here. She kept the plant first in darkness for a few hours and then placed it in sunlight. After 6 hours, she performed iodine test on plucked leaves P, Q and R. Which of the following is the possible outcome? (Note : Shaded portion in the question figure indicates green colour and in the options, it indicates blue-black colour.)


A - Leaf Q
B - Leaf Q
C - Leaf R
D - Leaf P


Correct answer is D since the CO2 obsorbent is present in Leaf P.When the outer circle is not present,it does not mean the leaf cannot prepare starch.The picture depiction is confusing.

Ans 1:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3
the correct answer is a

Ans 2:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
answer is A

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
The answer is A

Ans 4:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
AAAAAAAAAAAAAis the answer

Ans 5:

Saksham Arora from DPS, Gurugram 102
Class : Class 9
a

Ans 6:

Devanshi from Dps, Hyderabad
Class : Class 4
Answer is A

Ans 7:

Ishrita Rai from Sanskriti, pune
Class : Class 8
THE CORRECT ANSWER IS (A)

Ans 8:

Chinmayee from Dimensions , Singapore
Class : Class 4
The correct answer is D

Ans 9:

Naitik from Delhi Public School Noida, Noida
Class : Class 4

Ans 10:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3

Ans 11:

Shreshta from Presidium, Ghaziabad
Class : Class 3
I think the answer is [A]

Ans 12:

Chinmayee from Dimensions , Singapore
Class : Class 4
I mean D, and I think it is D : )

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 8
The answer is A

Ans 14:

Rishan Sandeep Gadhia from Orchids International, Mumbai
Class : Class 6
yes, the answer will be (a) as when we take such a leaf only the green part will be containing starch as it has chlorophyll in it and the other part does not , this is why only the green part will have the ingredients to make glucose(starch)and once iodine is added it turns blue and black

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SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Subject :NSO    Class : Class 4

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Master Utsav Bhattacharjee from The Emerald Heights International School , Indore
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

silk was first invented in ancient China, 


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Varsha.K from DAV Public School - Velachery, Chennai
Subject :NSO    Class : Class 7

Consider the following statements. Select the option which correctly identifies true (T) and false (F) ones.
(i) Microorganisms act upon the dead plants to produce humus.
(ii) Autotrophs lie at the base of a food chain.
(iii) Large scale cutting of trees is called afforestation.
(iv) Branched part of a tree above the stem is called crown.

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


But base means last. Doesn't it?

Ans 1:

Shreyans Mondal from GD Goenka Public School Dakshineswar, Kolkata
Class : Class 8

Ans 2:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8

Ans 3:

SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Class : Class 5

Ans 4:

Advaith from NPS HSR, Bengaluru
Class : Class 7

Ans 5:

Rohan David from Oakridge International school, Hyderabad
Class : Class 7

Ans 6:

aritroray from Chirec International School, Hyderabad
Class : Class 8

Ans 7:

Varsha.K from DAV Public School - Velachery, Chennai
Class : Class 5

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 5

Study the given steps involved in formation of fruit from flower.
P. The ovary develops into a fruit.
Q. The pollen grains grow long tube inside the style.
R. The ovules grow into seeds.
S. The male gametes fuse with the egg.
T. The pollen grains are deposited on the stigma of another flower.
U. The pollen tube enters the ovary.
Select the option which arranges given steps into correct sequence.

AT → U → Q → S → R → P
BQ → T → U → R → S → P
CT → Q → U → S → R → P
DU → Q → T → S → R → P


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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 5

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 5

Ans 1:

Saket Khurana from DPS E-CITY BENGALURU, BENGALURU
Class : Class 7

Ans 2:

Shreejith from EuroSchool , Bangalore
Class : Class 7

Ans 3:

Vihaan Patil from Bombay Scottish School, Mahim Mumbai
Class : Class 6
plz explain

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Debojit Sahu from Kendriya vidyalaya paradip port, paradip
Subject :NSO    Class : Class 9

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