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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:

colonel ruffs from dumb Indian International School, brawl stars
Class : Class 7

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

Ans 1:

shreyash rawat from podar international school, pune
Class : Class 6
its [D]

Ans 2:

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

Ans 3:

Aaditya Kant from DPS, Nerul, Navi Mumbai
Class : Class 4
d

Ans 4:

Devansh from mmvm, Udaipur
Class : Class 5
its [D]

Ans 5:

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

Ans 6:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 5

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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:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
Sludge settles down while scum stays up

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

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BHIDE PAVANI SHARDUL from ABHINAV VIDYALAY ENGLISH MEDIUM PRIMARY SCHOOL, Pune
Subject :NSO    Class : Class 5

Ans 1:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
AA

Ans 2:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
fuck

Ans 3:

from DAV, Amritsar
Class : Class 7
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Ans 4:

Aryaveer And Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 6
Frogs breathe through gills when they are small and through lungs when adult.Then, how can frogs breathe through their skin and are "Y"

Ans 5:

sauradeep from j v m Shyamali , ranchi
Class : Class 6
NO

Ans 6:

from DAV, Amritsar
Class : Class 7

Ans 7:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
a.y

Ans 8:

Niveditha from , Bengaluru
Class : Class 6
A

Ans 9:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
The correct answer is A because an adult frog breathes through both lungs and skin .

Ans 10:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
a.y

Ans 11:

Sohan Chelekar from Millennium National School, Pune
Class : Class 7
the correct answer is a

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Ridhi Goyal from DAV Public School, Ludhiana
Subject :NSO    Class : Class 9



Select the incorrect statement regarding this.

APlants require nitrogen mainly in the form of nitrate, which is exported from roots to shoots, reconverted to ammonium and assimilated as amino acid.
BRhizobia, cyanobacteria, nitrifying bacteria, symbiotic fungi, etc are used as biofertilizers.
CRhizobium bacteria produce N2 fixing root nodules in leguminous plants and thus help in replenishing nutrients in crop fields.
DMaterials of biological origin which are commonly used to maintain and improve soil fertility are green manures, biofertilizers and bioinsecticides.


Ans 1:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
B

Ans 2:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
D

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Faraz Khan from Rassaz International School, Mira Road, Thane
Subject :NSO    Class : Class 6

Ans 1:

Anika Saha from New Town School, KOLKATA
Class : Class 6
Answer should be c. It cannot be A as the motion of moon around earth is not rotational. it is circular

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 6
first thing , both option 1 and 3 have oone mistakein option a - a fan moving is wrong as it is circulatoryin option c - to and fro movement of swing is wrong as the swing may not swing at the same angle every timeDear,SOF , do not go mad!!!!!!!!!there are better trainers than you like- olympiad helper, olympiad succes, online test series (allen)so do not be proud

Ans 3:

Faraz Khan from Rassaz International School, Mira Road, Thane
Class : Class 6
answer should be A as to and fro motion of a swing is not periodic motion

Ans 4:

varun Gupta from arya vidya mandir, Mumbai
Class : Class 7

Ans 5:

Matisha Kansal from Sacred Heart High School, Chd, Chandigarh
Class : Class 6
the answer would be C as the hands of the clock shows rotational and periodic motion whereas the table top shows only rotational motion

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Atharva Kumar Tiwari from DPS, Faridabad
Subject :NSO    Class : Class 4

Ans 1:

Rivan Vyas from New Horizon Thane, Thane
Class : Class 1
Should this be D...summer

Ans 2:

Advika Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
https://www.sofolympiadtrainer.com/forum/user/467395 After Holi summer comes so it should be D; i.e.summer

Ans 3:

Advika Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
After Holi summer comes so it should be D;i.e.summer

Ans 4:

Abhinha Ajay Ovhal from Podar International School, Latur
Class : Class 2
the correct answer is C.

Ans 5:

Pratham Mehta from Shriram millenium school noida, NOIDA
Class : Class 4
Ans D is correct as spring starts in early February and holy comes in march almost after a month and in March it get's really hot so the and should be D summer

Ans 6:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6

Ans 7:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
holi comes in March and spring starts from 2nd month that is feb. ans 3 is correct

Ans 8:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
holi is on 28th march so why is holi not the marks of summer season coming?can someone explain it pls

Ans 9:

Annika from presidency, bangaluru
Class : Class 5

Ans 10: (Master Answer)

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

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Yogita Jha from Sarvodaya Sr. Secondary School, Khanpur, Jhajjar
Subject :NSO    Class : Class 5

Ans 1:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
b.50 minutes

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RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Subject :NSO    Class : Class 7

Ans 1:

Sanjay Kumar from Vellammal Vidyashram, Chennai
Class : Class 5
ans: b

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