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Subject :NSO    Class : Class 6

Consider the following statements (i - iv) and select the option that correctly identifies true (T) and false (F) ones.
(i) Angora wool is obtained from Angora sheep.
(ii) Spinning is the process of changing fibre into yarn.
(iii) Coir is obtained from fruits of Kapok tree.
(iv) The process of removing hair from the sheep is called shearing.
(v) Knitting can be done by using only one yarn.

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


Ans 1:

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

Ans 2:

Class : Class 6
correct answer is a

Ans 3:

Class : Class 7

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Subject :NSO    Class : Class 6

Refer to the given flow chart and select the incorrect option regarding P, Q, R and S.


A P is a protein fibre whereas Q, R and S are cellulosic fibres.
B Retting is involved in processing of Q whereas ginning is involved in processing of S.
C P could be wool, Q could be jute, R could be sisal and S could be cotton.
D Fabrics made from P and S are excellent winter clothings whereas fabrics made from Q and R form excellent summer clothings.


Ans 1:

Class : Class 6

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6

Ans 5:

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

Ans 6:

Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
yessssssssssssssssss

Ans 2:

Class : Class 3
Yesssssssssssss

Ans 3:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

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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Subject :NSO    Class : Class 9

Refer to the given key and answer the following questions.
(i) Membrane with definite pores - P
(ii) Inner membrane with stalked particles - Q
(iii) Inner membrane connected into stacks like structures - R
(iv) Sac like organelle containing hydrolytic enzymes - S
(v) Membraneless organelle composed of one large and one small subunit. - T Select the option that correctly identifies any of these organelles.

A P - Nucleus, Q - Mitochondrion, S - Ribosome
B Q - Chloroplast, R - Mitochondrion, T - Ribosome
C R - Chloroplast, S - Lysosome, T - Ribosome
D P - Nucleus, Q - Chloroplast, R - Mitochondrion


Ans 1:

Class : Class 9
Option A

Ans 2:

Class : Class 10
opt c is correct

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Subject :NSO    Class : Class 6

A few statements about centrifugation method are given :
I. The mixture containing very small suspended particles is rotated at a high speed in a centrifuge machine.
II. The denser particles stay at the top.
III. The method is used to separate water from wet clothes in a washing machine.
IV. The method can be used in laboratories for separating plasma and platelets.
The correct statements are

A I and IV only
B I, II and III only
C II, III and IV only
D I, III and IV only


Ans 1:

Class : Class 6
What is centrifugation

Ans 2:

Class : Class 6
The answer is A

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
c as it is facing opposite side

Ans 2:

Class : Class 5
option c is opposite like all the letters in the figure

Ans 3:

Class : Class 4
Yes , the answer is C .

Ans 4:

Class : Class 3
The question has all mirror images...... So answer has to be a mirror image.

Ans 5:

Class : Class 4

Ans 6:

Class : Class 5
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

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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