National Science Olympiad Forum By SOF Olympiad Trainer - Page 726

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Subject :NSO    Class : Class 6

Ans 1:

Class :
B....be coz both are plant derivatives....paper and cotton....

Ans 2:

Class : Class 2

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
A

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
the correct answer is a

Ans 4:

Class : Class 10
A

Ans 5:

Class : Class 10
a

Ans 6:

Class : Class 7
A

Ans 7:

Class : Class 8

Ans 8:

Class : Class 2
Answer : A

Ans 9:

Class : Class 6
a

Ans 10:

Class : Class 6
very confusing question. Answer is option a.

Ans 11:

Class : Class 9

Ans 12:

Class : Class 10

Ans 13:

Class : Class 8
very important question .the main fanda is to understand the question/words. the answer is option A

Ans 14:

Class : Class 8
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Ans 15:

Class : Class 9

Ans 16:

Class : Class 7

Ans 17:

Class : Class 10
A

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Answer should be (c). Flax is obtained from stem of flax stem and wool is obtained without harming the sheep

Ans 2:

Class : Class 9
Answer should be C ......

Ans 3:

Class : Class 7
answer should be [d] since Jute comes from the stem of the jute plant and wool is sheared from sheeps etc. without harming the animal.

Ans 4:

Class : Class 3
Answer is option - (C)

Ans 5:

Class : Class 9
Answer is (c). Because flax is used to make linen which is obtained from flax stem. Wool is made from sheep's hair without harming it.

Ans 6:

Class : Class 6
ANS is (a)and(c)Flax is obtained from plant stemSilk is obtained by harming silkworm

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
i did c because they are from seeds too but most are stems so d

Ans 3:

Class : Class 7
Cotton is the cheapest right??

Ans 4:

Class : Class 6
Jute is the cheapest natural fibre,not cotton!

Ans 5:

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 6:

Class : Class 7
I think that cotton is the cheapest natural material , not jute and so does a sof help desk employee

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6

Ans 9:

Class : Class 8

Ans 10:

Class : Class 7
The answer is b right?

Ans 11:

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

Ans 12:

Class : Class 9
Answer is d

Ans 13:

Class : Class 6
The correct answer is (D) as jute is the cheapest fibre . and stem of the flax plant provides fibres

Ans 14:

Class : Class 6

Ans 15:

Class : Class 7
cotton' is the cheapest natural fibre

Ans 16:

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 17:

Class : Class 6
The answer is not b

Ans 18:

Class : Class 6
I think cotton is the cheapest, but the answer says jute is cheapest. So which is right C or D?

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
correct answer is a

Ans 2:

Class : Class 6
The correct answer is (A)

Ans 3:

Class : Class 6
angora wool is obtain by angora rabbit and not angora sheep. Coir is obtained by the husk of a coconut

Ans 4:

Class : Class 7

Ans 5:

Class : Class 6
angora wool is obtain by angora rabbit and not angora sheep. Coir is the outer covering of coconut

Ans 6:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

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 3:

Class : Class 10

Ans 4:

Class : Class 6

Ans 5:

Class : Class 1

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6
cotton fibre is obtained from the fruit of the cotton plant

Ans 8:

Class : Class 6

Ans 9:

Class : Class 6

Ans 10:

Class : Class 9
there were multiple wrong answers

Ans 11:

Class : Class 9
d

Ans 12:

Class : Class 6

Ans 13:

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 14:

Class : Class 6

Ans 15:

Class : Class 9
Bengluru poor science schools

Ans 16:

Class : Class 8

Ans 17:

Class : Class 3
Cotton is not obtained from seed of plant so cotton can not be S!

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Yessssss

Ans 2:

Class : Class 4
it is very hard

Ans 3:

Class : Class 4

Ans 4:

Class : Class 5
yessssssssssssssssss

Ans 5:

Class : Class 7
Yesssssssssssss

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Thanks Aamena

Ans 2:

Class : Class 4
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.

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Option D

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