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from ,
Subject :NSO    Class : Class 6

Ans 1:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
The answer is b right?

Ans 2:

B HARI PAVAN from BHAVAN'S ARR SCHOOL, HYDERABAD
Class : Class 6
I think cotton is the cheapest, but the answer says jute is cheapest. So which is right C or D?

Ans 3:

amogh from DELHI PUBLIC SCHOOL NOIDA, Ghaziabad
Class : Class 6
The correct answer is (D) as jute is the cheapest fibre . and stem of the flax plant provides fibres

Ans 4:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
i did c because they are from seeds too but most are stems so d

Ans 5:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Flax is obtained from stem and jute is the cheapest natural fibre . So , the answer is D

Ans 7:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
Jute is the cheapest natural fibre,not cotton!

Ans 8:

Apeksha Singh from Cambridge School , Noida
Class : Class 3
The Answer is option D because Jute is known as the golden fibre and the process mentioned in the question is known as ginning

Ans 9:

Mrityunjay from Heritage International Xperiential School, Gurugram
Class : Class 8
I think Cotton is the cheapest fibre and someone from SOF help desk also says the same and the process of seperating cotton from cotton seeds is called Ginning only

Ans 10:

from ,
Class :

Ans 11:

archit from Chinmaya Vidyalaya, Raibareli
Class : Class 8

Ans 12:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
Answer is d

Ans 13:

Aditya Kaushal from Delhi Public School Ruby Park , Kolkata
Class : Class 7
I think that cotton is the cheapest natural material , not jute and so does a sof help desk employee

Ans 14:

archit from Chinmaya Vidyalaya, Raibareli
Class : Class 8

Ans 15:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
The answer is not b

Ans 16:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Cotton is the cheapest right??

Ans 17:

Sof Team from Sof Olympiad Trainer Helpdesk, Bangalore
Class : Class 7
cotton' is the cheapest natural fibre

Ans 18:

Ahamed Shayaan from Sree Gokulam public school , Calicut
Class : Class 7

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from ,
Subject :NSO    Class : Class 6

Ans 1:

from ,
Class :
angora wool is obtain by angora rabbit and not angora sheep. Coir is obtained by the husk of a coconut

Ans 2:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7

Ans 3:

Ojaswi from SAINT JOHNS CONVENT SCHOOL LANSDOWNE, DELHI
Class : Class 6
angora wool is obtain by angora rabbit and not angora sheep. Coir is the outer covering of coconut

Ans 4:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 7

Ans 5:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
The correct answer is (A)

Ans 6:

Saanvi from rvk, bengaluru
Class : Class 9
correct answer is a

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from ,
Subject :NSO    Class : Class 6

Ans 1:

from ,
Class :

Ans 2:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
Cotton is not obtained from seed of plant so cotton can not be S!

Ans 3:

Darsh Singh from The Deens Academy, Bengaluru
Class : Class 6

Ans 4:

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

Ans 5:

Aahan Jain from ,
Class : Class 1

Ans 6:

Saipriya from Sankara, Chennai
Class : Class 9
how can wool/silk and cotton be excellent winter clothing. WOrst option. And Nishka Rawat - Fibres from cotton are obtained from seeds. WOrst science readers................. Worst option too for Sof trainer

Ans 7:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10

Ans 8:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6
cotton fibre is obtained from the fruit of the cotton plant

Ans 9:

Saipriya from Sankara, Chennai
Class : Class 9
Bengluru poor science schools

Ans 10:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 11:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
The correct Ans is D because In the given flow chart, P is an animal fibre like wool or silk. Q could be jute, flax or hemp. R is sisal and S is cotton. Wool is used in winter clothing while cotton is used for summer clothing. Plant stem fibres like jute, flax, hemp are generally used for making bags, ropes, carpets, etc. Sisal which is a leaf fibre is also used for almost same purposes.

Ans 12:

from ,
Class :

Ans 13:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 14:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 10
there were multiple wrong answers

Ans 15:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 16:

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

Ans 17:

Madhav from Kendriya Vidyalaya Ernakulam, Ernakulam
Class : Class 8

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prarthana nath from Gundecha education academy, Mumbai
Subject :NSO    Class : Class 3

Ans 1:

Arjun Gourineni from CHIREC International School, Hyderabad
Class : Class 7
Yesssssssssssss

Ans 2:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4

Ans 3:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
yessssssssssssssssss

Ans 4:

Santina Suzanne from owis, bangalore
Class : Class 4
it is very hard

Ans 5:

Anagh Agrawal from Billabong high, JABALPUR
Class : Class 3
Yessssss

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Kavitharini Joseph from HUS, Chennai
Subject :NSO    Class : Class 4

Ans 1:

from ,
Class :
The answer is option “c”. see it was boiling water, she poured first into container “a” so it will be having the highest temperature than she poured to container b than to c and finally to container d so during this experiment the boiling water goes to lowest temperature and the last container was container d . So container a will be having the highest temperature and container d will be having the lowest temperature.

Ans 2:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
Thanks Aamena

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from ,
Subject :NSO    Class : Class 9

Ans 1:

from ,
Class :
Option D

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from ,
Subject :NSO    Class : Class 9

Ans 1:

from ,
Class :
Option A

Ans 2:

from ,
Class :
opt c is correct

Ans 3:

from ,
Class :
a

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from ,
Subject :NSO    Class : Class 6

Ans 1:

from ,
Class :
The answer is A

Ans 2:

Anika Saha from New Town School, KOLKATA
Class : Class 6
the answer is A.

Ans 3:

Atul Sanjeev from Indian School Al Ghubra, Muscat
Class : Class 9
What is centrifugation

Ans 4:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
centrifugation is a process in which a substance is spun at a very high speed to separate minute particles. For eg. Blood is spun at a high speed to separate particles such as red and white blood cells, plasma platelets, and plasma.

Ans 5:

Srinwanti from Ekya, bangalore
Class : Class 8

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Shridhar from G G International school, Pune
Subject :NSO    Class : Class 3

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Yes , the answer is C .

Ans 2:

from ,
Class :
The question has all mirror images...... So answer has to be a mirror image.

Ans 3:

nandini from father agnel school, Noida
Class : Class 7
becase in the figure all the letters seem to be in the opposite direction while options a b and d are not showing them in th opposite direction and option c is showing

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 5:

Punita Ghosh from Billabong High International School, mumbai
Class : Class 5
c as it is facing opposite side

Ans 6:

nandini from father agnel school, Noida
Class : Class 7
option c is opposite like all the letters in the figure

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Ayush from Dps, Bengaluru
Subject :NSO    Class : Class 3

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