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Charu Gupta from DPS Faridabad, Faridabad
Subject :NSO    Class : Class 7

Ans 1:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
D IS INCOMPLETE OPTION.

Ans 2:

PS Gour from Chirec international schoo The best 30 years and beyond, Hyderabad
Class : Class 7
the last option is not understandable

Ans 3:

Jahnavi Srikoti from narayana, Ghaziabad
Class : Class 7
d is incomplete

Ans 4:

Anuraaj Salunkhe from St Gregorios High School, Mumbai
Class : Class 10

Ans 5:

arjun from the bishops school camp , pune
Class : Class 8
OPTION D SHOULD BE ''BOTH B AND C

Ans 6:

Nida Farheen CM from vedavyasa, kozhikode
Class : Class 10
the answer is d

Ans 7:

yash kirpalani from st gregorios high school chembur, Mumbai
Class : Class 7
the last option is incomplete the complete option should be Both B and C

Ans 8:

Mayank Mili from Delhi Public School, Golaghat
Class : Class 9
D is incomplete answer

Ans 9:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
please explain

Ans 10:

Venya Vikas from Chirec International , Hyderabad
Class : Class 7
D is an incomplete option

Ans 11:

Iba Khan from DPS , Noida
Class : Class 8
d is grammatically incorrect

Ans 12:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4
d is incomplete

Ans 13:

SHREYAN GUPTA from GARDEN HIGH SCHOOL, KOLKATA
Class : Class 9
Where is D?

Ans 14:

rethish from Veltech, Avadi
Class : Class 3

Ans 15:

Pratham Dave from GNS, Bangalore
Class : Class 7
D is an incomplete option

Ans 16:

rethish from Veltech, Avadi
Class : Class 3
Turmeric indicator remains yellow in acidic (vinegar) and neutral solutions (common salt solution) and turns red in basic solution (soap solution and baking soda).

Ans 17:

rethish from Veltech, Avadi
Class : Class 3
so it is both b and c now ok guys.

Ans 18:

Aanya from DAV, Gurgaon
Class : Class 8
The whole statement isn't mentioned

Ans 19:

Advait bhat from Kendriya Vidyalaya , Bangalore
Class : Class 8
d is an incomplete answer

Ans 20:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 10
Yes,it is wrong. Incomplete option

Ans 21:

Hritvi from Podar International School, Mumbai
Class : Class 7
D is an incomplete option .

Ans 22:

Shourya Bhushan from DPS Gurgaon, Gurgaon
Class : Class 7
They have not written: Both B and C in the D option. Whereas, B is important in the D option.

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Hiyansh Jain from Podar International School, Mumbai
Subject :NSO    Class : Class 5

Which of the following statements is correct?

A The mantle or the upper layer of the Earth is made of volcanoes.
B The liquid that comes out of a volcano is called magma.
C Based on the nature of eruption, volcanoes can be active, dormant or extinct.
D The magnitude of tsunami is measured on Richter Scale developed by Charles Richter in 1985.


The liquid inside the volcano is called lava . When it comes out it is called magma.

Ans 1:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 9
the answer is b

Ans 2:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
Volcano is an opening on the surface of Earth’s crust. There are three types of volcanoes: (i) Active volcanoes are those which are currently erupting or have erupted in the last 10,000 years. (ii) The dormant volcanoes are in a state of sleep. This means that they had erupted in the past but can erupt again, however, at the moment they are asleep. (iii) Extinct volcanoes are those that have been inactive for thousands of years and are not expected to erupt again. The liquid that comes out of a volcano is called lava. Richter scale measures magnitude of earthquakes and was developed by Charles Richter in 1935.

Ans 3:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 4:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8
I feel the (B) should be the correct answer, so please explain why (C) is the correct one.

Ans 5:

Hiyansh Jain from Podar International School, Mumbai
Class : Class 7

Ans 6:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
nope you are telling the opposite

Ans 7:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 9
ans should be b

Ans 8:

Biju Pappachan from Rkc , Raipur
Class : Class 1
The correct Ans is B and I did B but SOF is telling me I did C. Impossible and I am telling the truth I swear.

Ans 9:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
nope you are telling the opposite

Ans 10:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8
Sorry, I had was to mark this one only, but instead of (C), I clicked on (B)!

Ans 11:

Hiyansh Jain from Podar International School, Mumbai
Class : Class 7
ok

Ans 12:

Athiya Mahapatra from ITL Public School, NewDelhi
Class : Class 5
From Athiya Mahapatra: option)c As the Upper layer of Earth is called Crust. The liquid which flows outside a volcano is called lava and Richter Scale is used to measure intensity of earthquakes.

Ans 13:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8
The answer is (C), but (B) can also be the answer.

Ans 14:

Fiza from ABCD, Cochin
Class : Class 7
When it's inside a volcano, it's called magma. When it's out, it's called lava.

Ans 15:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Totally agree with you Mannat

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Sanjeev Garg from Assumption Convent School, malout
Subject :NSO    Class : Class 5

Ans 1:

INDRANI GHOSH ROY from AMRITA VIDYALAYAM, Durgapur
Class : Class 5
First of all, fish, crocodile and snakes, all these three are egg laying animals. Secondly, all of them are cold blooded animals. And thirdly, all of them are covered with scales. And therefore, statements 1, 2 & 3 are correct. That is why option C is correct.

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Subject :NSO    Class : Class 5

Ans 1:

Trijash Maut from Delhi Public School Digboi, Digboi
Class : Class 6
YOYOYOYOOOO

Ans 2:

YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Class : Class 8
syu

Ans 3:

VAIBHAVH RAMESH from NARAYANA ETECHNO WHITEFIELD, BANGALORE
Class : Class 5

Ans 4:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
got a little confused here but sorted it out

Ans 5:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is C because 0 minutes was 20 degrees celsius. Then, we were adding 6 after 2, 4, 6 minutes and so on. 1 is half of 2, and 1+2=3. So we should take normally 26 degrees celsius+(Half of 6) degrees celsius=26 degrees celsius+3 degrees celsius=29 degrees celsius.

Ans 6:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

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Siri B Patil from Indian School, Sohar, Oman, Sohar
Subject :NSO    Class : Class 5

Ans 1:

D Murari from Indian School of Excellence, Bangalore
Class : Class 9
Novosti

Ans 2:

SANVI ROHILLA from The little shri, Rohtak
Class : Class 5
Novosti

Ans 3:

Pratham Dave from GNS, Bangalore
Class : Class 7
Novosti

Ans 4:

Aryaveer And Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 9
urenrjrjkvnm

Ans 5:

Siddhant Singhania from AGCS purulia, Puruliya
Class : Class 6

Ans 6:

Shreyansh Gupta from MVN, faridabad
Class : Class 5
Novosti

Ans 7:

Tanmay kaushal from ICSE, Mumbai
Class : Class 5
Novosti

Ans 8:

Arnav Vashisth from GD GOENKA PUBLIC SCHOOL, Delhi
Class : Class 5
Fishing rod changes speed of the fish

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Shriram dindore from KVS 9BRD AFS PUNE, PUNE
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

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

Ans 2:

Chatresh ramasai gudi from Bgsnps , Bangalore
Class : Class 8

Ans 3:

Rakshit Mittal from Atomic energy central school 4, Mumbai
Class : Class 10

Ans 4:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 5:

Palchin from Naval public school, Uran
Class : Class 8
please explain

Ans 6:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 9
shouldnt it be a

Ans 7:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4
It should be a

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Matisha Kansal from Sacred Heart High School, Chd, Chandigarh
Subject :NSO    Class : Class 6

Ans 1:

Medha from Delhi Public School, Chd, Chandigarh
Class : Class 8
Answer is A (L) after the instruction the sequence is : N P S I L 4 W R 9 U F 7 S Y And then u get the answer

Ans 2:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

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punyah from kvs happy valley, shillong
Subject :NSO    Class : Class 4

Ans 1:

Isra Fathima from sophia high school, Bengaluru
Class : Class 7

Ans 2:

Daivik Goel from Delhi public school , Vadodara
Class : Class 4
The correct option is -(D)

Ans 3:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 8

Ans 4:

Devansh from asn senior secondary school, delhi
Class : Class 8
its [D]

Ans 5:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 8
d

Ans 6:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 4
Option D

Ans 7:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 6

Ans 8:

shreyash rawat from podar international school, pune
Class : Class 8
its [D]

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Nilanjana De from Delhi Public School North, Bengaluru
Subject :NSO    Class : Class 7

Read the following statements regarding waste-water treatment plant with one or two blanks. Select the option that correctly completes any two statements.
(i) ________ process allows settling of sand in the chambers.
(ii) The solid waste called _______settles down and lighter waste called ________ floats on the surface.
(iii) Secondary treatment involves use of_______.
(iv) ________ and ________ are used in tertiary treatment.

A (ii) sluge, scum; (iii) chemicals
B (iii) grit removal; (iv) chlorine, UV rays
C (ii) scum, sludge; (iii) bacteria
D (i) screening; (iv) aerobic, anaerobic bacteria


What is the answer for the fourth statement?

Ans 1:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
yeah...sludge settles and scum floats.

Ans 2:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
SCUM,SLUDGE.

Ans 3:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
Sludge settles down while scum stays up

Ans 4:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
chlorine and UV rays are tertiary treatment

Ans 5:

Anshuman D from MVM, Hyderabad
Class : Class 9
Sludge settles while scum floats .you are right

Ans 6:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
CSEDIMENTATIONSCUM.SLUDGE

Ans 7:

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Class : Class 8

Ans 8:

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Class : Class 8
SLUDGE IS THE SOLID WASTE

Ans 9:

DIVYA PRAKASH from ST.MICHAEL'S HIGH SCHOOL, PATNA
Class : Class 8
good

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SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5
it is B got it correct

Ans 2:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
,bbb,bbb,sing it is bbbb,

Ans 3:

Tanmay kaushal from ICSE, Mumbai
Class : Class 5
Class : its b easy

Ans 4:

Parijaat waghmare from Centre point school international, Nagpur
Class : Class 5

Ans 5:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore
Class : Class 5
D

Ans 6:

Amit kumar dash from Soon international school , BHUBANESWAR
Class : Class 5
D

Ans 7:

samanvay sinha from School of India, Bangalore, bengaluru
Class : Class 5
It is option C because hair and spines are different

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