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arjun from the bishops school camp , pune
Subject :NSO    Class : Class 7

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Ayush Singh from LMB, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
sun has no orbit and moon has orbit around the earth so the answer is C .... COMMET

Ans 2:

GAIRIK GHOSH from ST. AUGUSTINE'S DAY SCHOOL, BARRACKPORE, AGARPARA
Class : Class 6
The orbit marked as 'x'is of the sun i.e. option 'B'

Ans 3:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
Ashwak mind your words

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Every person who says the answer is A , B or D is MAD

Ans 5:

Yahvi Sahay from D P S electronic city, Bengaluru
Class : Class 8

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prithika from Indian school sohar, sohar
Subject :NSO    Class : Class 5

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Aarav 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:

Ajay from Omega, Chennai
Class : Class 6

Ans 2:

Antash from Podar , Kalyan
Class : Class 3

Ans 3:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8

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

Ans 1:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
Class : Class 6
that was easy

Ans 2:

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 7

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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 10
B

Ans 2:

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

Ans 3:

Arjun from Sri Kumaran Public School - ICSE, Bengaluru
Class : Class 8
This is wrong. Hydra is a Cnidarian, therefore the waste exits through its mouth.

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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 6

Ans 2:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 6

Ans 3:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
It should be B

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PARTH MEHTA from Navrachana 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 8
NA

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PARTH MEHTA from Navrachana school, Vadodara
Subject :NSO    Class : Class 4

Ans 1:

PARTH MEHTA from Navrachana school, Vadodara
Class : Class 6
Answer shud be d

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