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Arsh Gupta from Cambridge International School, Jalandhar
Subject :NSO    Class : Class 6

A few changes are given as follows:
(i) Spinning of top
(ii) Occurrence of day and night
(iii) Formation of curd from milk
(iv) Curdling of milk by adding lemon juice
(v) Digestion of food
(vi) Burning of paper
Which of the following represents the correct classification of these changes?

A(i), (iv) and (vi) are physical irreversible changes while (ii), (iii), (iv) and (v) are chemical changes.
B(i), (iv) and (vi) are fast changes while (ii), (iii) and (v) are slow changes.
C(ii), (iv), (v) and (vi) are desirable changes while (i) and (iii) are undesirable changes.
DNone of these


Ans 1:

Shweta Garg from apeejay school noida, Ghaziabad
Class : Class 3

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Subham Mishra from WwA cossipore English school, kolkata
Subject :NSO    Class : Class 3

Ans 1:

Subham Mishra from WwA cossipore English school, kolkata
Class : Class 3
What is the meaning of S here. please clarify. S is something which is natural i believe.

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Bhavya Sheth from Bright Day School, Vadodara
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

Air contains approximately 78% nitrogen, 21% oxygen, 0.9% argon, 0.04% carbon dioxide, and small amounts of other gases.


Ans 2:

Rishon Chandy from KV IIT Powai, Mumbai
Class : Class 6

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Anushka Srivastava from Cjm, Dehradun
Subject :NSO    Class : Class 7

Which of the following statements is/are correct?
I. The excretory system in humans consist of a pair of kidneys, ureter, urinary bladder, a pair of urethras and urinary opening.
II. In lower animals such as Hydra waste product is excreted by the process of diffusion through the body surface.
III. The urine passes from the kidneys through urethra into urinary bladder.
IV. Urine consists of water, urea and other waste products and urea is breakdown product of proteins.

AI and IV
BII and IV
CII and III
DI and III


i even do think that the 1st option is correct

Ans 1:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 7
B

Ans 2:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
9jh

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Amol Athawale from WoodRidge High, aurangabad
Subject :NSO    Class : Class 8

The different steps of agricultural practices are given below randomly.

(i) Irrigation (ii) Ploughing
(iii) Weeding (iv) Levelling
(v) Harvesting (vi) Fertilisers
(vii) Sowing (viii) Crop protection
(ix) Storing seeds  

Which of the following represents the correct sequence of these practices?

A (ii) – (iv) – (vii) – (i) – (vi) – (iii) – (viii) – (v) – (ix)
B (iv) – (ii) – (vii) – (i) – (vi) – (iii) – (viii) – (v) – (ix)
C (ii) – (vii) – (iv) – (iii) – (i) – (v) – (vi) – (viii) – (ix)
D (iv) – (vii) – (i) – (ii) – (iii) – (viii) – (ix) – (v) – (vi)


i think correct answer is B not A because levelling is done before ploughing.

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8

Ans 2:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 8

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PARTH MEHTA from Nov rachna school, Vadodara
Subject :NSO    Class : Class 4

Read the given paragraph with few blanks and select the option that correctly fills up any three of these blanks.
Human adults have P types of teeth in their dentition. These are Q , R , S and molars. Q helps in cutting or biting food. There are T Q in each jaw. R teeth are absent in milk teeth set but there are U such teeth in permanent teeth set. S are four in number and helps in V food.

A P-8, R-Premolars, V-Grinding
B Q-Incisors, T-4, U-8
C S-Canines, T-8, U-4
D P-8, S-Premolars, V-Tearing

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B

Human adults have 4(P) types of teeth in their dentition. These are Incisors(Q), Premolars(R), Canines(S) and molars. Incisors(Q) helps in cutting or biting food. There are 4(T) Incisors(Q) in each jaw. Premolars(R) teeth are absent in milk teeth set but there are 8(U) such teeth in permanent teeth set. Canines(S) are four in number and helps in Tearing(V) food.


Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 5
NA

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PARTH MEHTA from Nov rachna school, Vadodara
Subject :NSO    Class : Class 4

Ans 1:

PARTH MEHTA from Nov rachna school, Vadodara
Class : Class 3
Answer shud be d

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PARTH MEHTA from Nov rachna school, Vadodara
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B


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ISHAN DAS from DELHI PUBLIC SCHOOL , ANGUL
Subject :NSO    Class : Class 4

Ans 1:

jathin from national public school chikkabanavara, banglore
Class : Class 4
THE ANSWER C

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Naman from Uis, Bangalore
Subject :NSO    Class : Class 3

Ans 1:

Anaahad Mehar Satsangi from Delhi Public School Agra, Agra
Class : Class 3
the correct answer will be c

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