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Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar
Subject :NSO    Class : Class 7

Ans 1:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro
Class : Class 7
Liquid oxygen is impure so ans is B

Ans 2:

Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar
Class : Class 7
B

Ans 3:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
B

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Dishen dharmenra patel from Anand niketan to the satellite , Ahmedabad
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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Shaurya Ranjan Singh from BPDAV school , Hyderabad
Subject :NSO    Class : Class 5

X is a plant whose seeds are dispersed by wind whereas Y is a plant whose seeds are dispersed by animals. Which of the following holds true regarding plants X and Y?

AThe seeds of plant X may have either wings or hair like structures.
BThe fruits of plant Y may or may not be edible.
CThe seeds of plant X are dispersed in a small radius around parent plant whereas seeds of plant Y are dispersed to very far off places.
DBoth A and B

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
It should be opt. D

Ans 2:

Ishan sandip chaudhari from Divine Child International School, Ahmedabad
Class : Class 5
HOW WOULD THE PLANT/SEED HAVE WINGS!!!!!! PLEASE EXPLAIN.

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Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
OPTION A IS RIGHT >> this is because ton can remain as same don't decompose >> it cant be b because before lowering fruits and veges are being raised in amount but its not possible as organic waste like fruits and vegetables decompose very quickly so their amount cant be raised..... REGARDSAARUSHBYE BYE

Ans 2:

Vihaan Dhondiyal from Delhi public school, BANGALORE
Class : Class 7
The answer is A as a tin can does not decompose easily.

Ans 3:

Srinwanti from Ekya, bangalore
Class : Class 8

Ans 4:

UTSAV from CHINMAYA Vidyalay, Unchahar
Class : Class 4
the answer can be both A and B i'm not sure

Ans 5:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
Can anyone please tell me if the answer is a or b. I'm sooooooooooooooo confused

Ans 6:

manya murali from sri sankara senior secondry school, CHENNAI
Class : Class 10
I dont get the question. Can anyone please reply...

Ans 7:

Nivy from Anan International School, Coimbatore
Class : Class 10
technically ,both A

Ans 8:

Saesha from mount St mary's, NEW DELHI
Class : Class 6
someone pls tell if it is A or B

Ans 9:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
Class : Class 6
b

Ans 10:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
the answer is d (all of these) as the mosquitis will increase with time the non - biodegradable will be be constent the biodegraedable wate will decrease as the misquotes will eat it

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Abhay rajvanshi from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is D because we get QUARTZITE, OBSIDIAN, GRANITE and CONGLOMERATE, respectively, when we cut off alternate letters starting from the first letter. QUARTZITE is a metamorphic rock, OBSIDIAN and GRANITE are igneous rocks and CONGLOMERATE is a sedimentary rock.

Ans 2:

Khushie from Gdgps gurugram, Gurgaon
Class : Class 5

Ans 3:

Jeevita from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 5

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Abhay rajvanshi from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 5

The diagram shows three people taking a ride at a fair as shown here. As the boat swings back and forth, which of the following statement(s) is/are true about the three persons, X, Y, and Z ?

(i) X experiences the most potential energy when the boat swings left.
(ii) Z experiences the most potential energy when the boat swings right.
(iii) Y experiences the most potential energy as the boat passes the rest position during swinging.

A(i) only
B(ii) only
C(i) and (ii) only
D(i), (ii) and (iii)


can somebody give me the explanations ?

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Dhananjayan Seshadri from PSBBSSS, Chennai
Subject :NSO    Class : Class 9

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TEJAS Agarwal from Delhi Public School Bhopal, Bhopal
Subject :NSO    Class : Class 7

Read the given statements.
(i) Paramecium has stiff hair-like structures called ____ all over its body, which are used for ____.
(ii) Hydra has a number of ____ around its mouth, that entangle small aquatic animals and kill them with their ____cells.
(iii) Frog uses its long, sticky ____ to catch insects.
(iv) Mosquito sucks up the blood of animals with its ____.
Select the option which correctly fills the blanks in any two of these statements.

A (ii) - Cilia, Absorptive;(iii) - Hand
B (i) - Tentacles, Ingestion; (iv) - Feeding tube
C (i) - Cilia, Ingestion; (ii) - Tentacles, Stinging
D (iii) - Tongue; (iv) - Pseudopodia


what is cilia absorptive cells in this question ?

Ans 1:

Ananya Bansal from dpsnoida, Noida
Class : Class 5
Answer is c

Ans 2:

Pratham Dave from GNS, Bangalore
Class : Class 7
C

Ans 3:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro
Class : Class 7
Hair like structure which helps in absorption

Ans 4:

Binay Dalai from Dps gandhinagar, Ahmedabad
Class : Class 9
c is the correct option

Ans 5:

Tanushree from Asian International School, Colombo
Class : Class 7
Option C 😜

Ans 6:

Ananya Bansal from dpsnoida, Noida
Class : Class 5
The options are wrong. A butterfly does not gnaw nectar.

Ans 7:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option c

Ans 8:

Aarna from National public school , Chennai
Class : Class 7
I am not able to understand this question

Ans 9:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Class : Class 6
c is correct!!!!!

Ans 10:

Binay Dalai from Dps gandhinagar, Ahmedabad
Class : Class 9
c is the correct option

Ans 11:

Rithvik from BVM Global, Chennai
Class : Class 8
Aarna u might know any 2 answers in these right... the simple trick is to cross the wrong so anyhow only one remains and it will be the correct answer....

Ans 12:

Rithvik from BVM Global, Chennai
Class : Class 8
option c

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JOHN Emmanuel from Indian school sohar, Sohar
Subject :NSO    Class : Class 6

Ans 1:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9

Ans 2:

Sharvil Kadam from Vikhe Patil Memorial School, Pune
Class : Class 9
The answer is C - You have to take add the first and fourth term and then subtract it from the difference of second and third term eg of 1st one: 175 + 428 = 603 , 81 - 24 =57 603 + 57 = 660 Therefore, 1085 + 231 = 1316 , 641 - 374 = 267 1316 + 267 = 1583 Answer = C

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Dhananjayan Seshadri from PSBBSSS, Chennai
Subject :NSO    Class : Class 9

A large spherical mass M is fixed at one position and two identical point masses m are kept on a line passing through the centre of M (see figure). The point masses are connected by a rigid massless rod of length l and this assembly is free to move along the line connecting them. All three masses interact only through their mutual gravitational interaction. When the point mass nearer to M is at a distance r = 3l from M and tension in the rod is zero then the acceleration of point mass will be


AGM/9l2
BGM/16l2
C25/288 GM/l2
D7/144 GM/l2


There is only answer..... No explanation.....PLS help

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