National Science Olympiad Forum By SOF Olympiad Trainer - Page 701

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
The answer is C as the material P is compressed as shown in the picture related to that air is compressible while water is diificult to compress with respect to material Q.

Ans 3:

Class : Class 5
Absolutely, Rimi! You were right all along. I had some trouble grasping the solution at first, but your explanation really helped me understand it much better. Thank you!

Ans 4:

Class : Class 2

Ans 5:

Class : Class 9
The answer is C because air and water can be compressed

Ans 6:

Class : Class 5

Ans 7:

Class : Class 7

Ans 8:

Class : Class 5
c

Ans 9:

Class : Class 5

Ans 10:

Class : Class 2

Ans 11:

Class : Class 2

Ans 12:

Class : Class 7
Ccccccccccccccccccccc ccccccccccccccccccccccccccccc

Ans 13:

Class : Class 5

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 8
Excuse me. The answer is not b, its a. They say it themselves in the solution. I suppose it's a mistake

Ans 3:

Class : Class 7
there are too many silly errors in your papers like these. i am tired of writing complaints again and again. you better respond to this quickly. the explanation you have given in solution is correct but the answer is wrong. it should be 'a' and not 'b'.

Ans 4:

Class : Class 8
(i) Milky Way is a spiral-shaped galaxy. --- Corrrect (ii) Planet Venus has 63 Moons. -------------Wrong ( it does not have moons) (iii) Satellites are small heavenly bodies that revolve around the Sun. --Wrong (they revolve around planets) (iv) One revolution of the Earth is completed in about 365 1/4 days. This time period is called a solar year. --Correct Therefore correct option is (A)

Ans 5:

Class : Class 10
I think the question was wrong as they ate showing incorrect statements. This means the question was like this. Which of the following statements are incorrect?

Ans 6:

Class : Class 6
Please stop these kind of mistakes. I have given many complaints.

Ans 7:

Class : Class 9
Answer is A NOT b

Ans 8:

Class : Class 10
ANSWER IS A, NOT B AS THE QUESTION SAYS TO CHOOSE THE CORRECT OPTION AND NOT INCORRECT OPTION.

Ans 9:

Class : Class 7
The correct answer will be A as Milky Way is a spiral-shaped galaxy and one revolution of the Earth is completed in about 365.25 days and this time period is called a solar year.

Ans 10:

Class : Class 9
the question must be wrong.

Ans 11:

Class : Class 10

Ans 12:

Class : Class 10
please correct the mistake as the question says that which is the correct option instead of incorrect.

Ans 13:

Class : Class 9
The answer is A

Ans 14:

Class : Class 6
They are asking for the CORRECT answer so its A

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Subject :NSO    Class : Class 6

The different steps of processing of cotton are given below randomly.
(i) Spinning
(ii) Weaving
(iii) Ginning
(iv) Carding
(v) Combing
Which of the following represents the correct sequence of steps?

A (iii) → (iv) → (v) → (i) → (ii)
B (iv) → (ii) → (i) → (v) → (iii)
C (iii) → (v) → (iv) → (i) → (ii)
D (iii) → (i) → (iv) → (v) → (ii)


Ans 1:

Class : Class 8

Ans 2:

Class : Class 9

Ans 3:

Class : Class 8

Ans 4:

Class : Class 10

Ans 5:

Class : Class 8

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8

Ans 10:

Class : Class 10
A is correct

Ans 11:

Class : Class 8

Ans 12:

Class : Class 10
A

Ans 13:

Class : Class 8

Ans 14:

Class : Class 7

Ans 15:

Class : Class 9

Ans 16:

Class : Class 8
I rock,i am the smartest and i say that A is correct

Ans 17:

Class : Class 8

Ans 18:

Class : Class 8

Ans 19:

Class : Class 8

Ans 20:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Verrrrrrry easyyyy.

Ans 2:

Class : Class 6

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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

Match column I with column II and select the correct option from codes given below.

Column I Column II
(i) Ginning
(A) Cleaning and disentangling the fibres
(ii) Combing
(B) Brushing and straightening of fibres
(iii) Carding
(C) Bolls
(iv) Seed pods
(D) Cotton fibres after being separated from seeds
(v) Lint
(E) Separating fibres from seed


A(i) - (e); (ii) - (b); (iii) - (a); (iv) - (c); (v) - (d)
B(i) - (d); (ii) - (e); (iii) - (b); (iv) - (a); (v) - (c)
C(i) - (e); (ii) - (a); (iii) - (b); (iv) - (c); (v) - (d)
D(i) - (d); (ii) - (a); (iii) - (b); (iv) - (c); (v) - (e)


Ans 1:

Class : Class 7
A

Ans 2:

Class : Class 10
a

Ans 3:

Class : Class 9

Ans 4:

Class : Class 7
A

Ans 5:

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

Ans 6:

Class : Class 8
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Ans 7:

Class : Class 9

Ans 8:

Class : Class 2
Answer : A

Ans 9:

Class : Class 8

Ans 10:

Class : Class 9

Ans 11:

Class : Class 9
the correct answer is a

Ans 12:

Class : Class 6
a

Ans 13:

Class : Class 8

Ans 14:

Class : Class 10
A

Ans 15:

Class : Class 7

Ans 16:

Class : Class 10
A

Ans 17:

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

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Subject :NSO    Class : Class 6

Ans 1:

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 2:

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

Ans 3:

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

Ans 4:

Class : Class 3
Answer is option - (C)

Ans 5:

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

Ans 6:

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.

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Subject :NSO    Class : Class 6

Select the option that correctly fills the blanks in the given sentences.
(A) (i) of a flax plant provides fibres.
(B) (ii) is the cheapest natural fibre.
(C) The process of separating cotton fibres from cotton seeds is called (iii).
(D) (iv) is obtained by spinning together a bunch of fibres.
(E) (v) is a blended fabric.
(F) The loose fluffy fibres are untangled and combed to form a long soft rope called a (vi).

(i) (ii) (iii) (iv) (v) (vi)
A Seed Jute Retting Yarn Terry-cot Sliver
B Stem Cotton Retting Yarn Terry-cot Sliver
C Seed Cotton Ginning Yarn Terry-cot Sliver
D Stem Jute Ginning Yarn Terry-cot Sliver


Ans 1:

Class : Class 8

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

Class : Class 6

Ans 6:

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

Ans 7:

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 8:

Class : Class 9
Answer is d

Ans 9:

Class : Class 7
The answer is b right?

Ans 10:

Class : Class 8

Ans 11:

Class : Class 8

Ans 12:

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

Ans 13:

Class : Class 6

Ans 14:

Class : Class 8
cotton' is the cheapest natural fibre

Ans 15:

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 16:

Class : Class 6
The answer is not b

Ans 17:

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

Ans 18:

Class : Class 7
Cotton is the cheapest right??

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