National Science Olympiad Forum By SOF Olympiad Trainer - Page 714
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Anant V Manoj from Bharatiya Vidya bhawan, Thrissur
Subject :NSO    Class : Class 7

Ans 1:

Papiya Biswas from ARMY PUBLIC SCHOOL, Kolkata
Class : Class 5
option B

Ans 2:

Sunidhi chatterjee from Carmel school kargali , Bokaro
Class : Class 7
I think it's option b earthworm

Ans 3:

Nabhajit Bhar from Techno India Group Public School, Chinsurah
Class : Class 7
option B

Ans 4:

Anant V Manoj from Bharatiya Vidya bhawan, Thrissur
Class : Class 7

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Karmanya Gupta from DPS, Udaipur
Subject :NSO    Class : Class 5

Ans 1:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
D

Ans 2:

Rudra Tripathi from DPS Noida, Noida
Class : Class 10
According to scientific facts all reptiles have backbone . If they didn't have a backbone they couldn't crawl .

Ans 3:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
i think it is option a b and c

Ans 4:

Niten Mohan from ,
Class : Class 2
According to Known Scientific facts options a) b) and c are non vertebrate so why are Options a and b are not part of right answer? At times quality of questions raise a doubt about due diligence being put in articulating the questions .

Ans 5:

Inamul from Springs, Nilambur
Class : Class 9
the answer is c crickets donot have backbone. fish obviously has backbone snakes have flexible backbone(cartilage) and all reptiles have backbone

Ans 6:

AHELI CHAKRABARTI from BGS INTERNATIONAL PUBLIC SCHOOL, DWARKA
Class : Class 3
Option D has a backbone for sure so the answer should be either A,B or C.

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Dheer Pandey from Sentia The Global School, Hyderabad
Subject :NSO    Class : Class 4

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YATIKA.GANDHI from Delhi Public School, Noida
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

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

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rupa from jss, Dubai
Subject :NSO    Class : Class 4

Ans 1:

Arnav kaul from Chirec, Hyderabad
Class : Class 2
d because Mary is only 1 year 5 months old and Punit is 1 year 6 months old

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Daksh from RKC, Rajkot
Subject :NSO    Class : Class 4

Ans 1:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
Answer is D

Ans 2:

viha from Silver Oaks International School, Sarjapur, Bangalore
Class : Class 4
Using the person's perspective, even A is correct. So the answer is D.

Ans 3:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
d

Ans 4:

Adway Bachchan from Indian School Sohar, Sohar
Class : Class 8
it should be d cause of the directions in a

Ans 5:

Shaurya Suryawanshi from The Orbis school, Pune
Class : Class 7
It's 'D' because she will turn right as shown in the given figure

Ans 6:

Chetan Datta Rajavaram from Meridian madhapur, Hyderabad
Class : Class 10
Answer is D

Ans 7:

Adarsh from DPS, Raipur
Class : Class 5
The answer is D as the both option A and B reaches her to the bus stop.

Ans 8:

Archit Borkar from SSVM World School, Coimbatore
Class : Class 9
Answer should be D

Ans 9:

Arnav kaul from Chirec, Hyderabad
Class : Class 2
B

Ans 10:

GOPIKRISHNA from DAV PUBLIC SCHOOL NTPC KANIHA , TALCHER
Class : Class 4
B IS CORRECT BECAUSE IF SHE GOES WITH OPTION.-A, C, D AS IN A IT HAD MISSED ONE LINE THAT IS STAIRTH. GOPI KRISHNA CLASS. 4 SEC A GOLD MEADALIST.

Ans 11:

Hardik Gupta from Chettinad Vidyashram, Chennai
Class : Class 6
it is D because both of the ways lead her to the bus stop

Ans 12:

Deepayan Das from South Point High School, Kolkata
Class : Class 6
it would not be D as in D there is straight,so,she would move straight then right ,she would turn right, but will not go or move right!So to move her there should be 'straight' after every instruction.Hence,there is no straight after every instruction,it is not 'D'.

Ans 13:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7
Can you tell the answer to this question

Ans 14:

Zayan Mustafa from Goldcrest High, Navi Mumbai
Class : Class 5
THe answer is c

Ans 15:

kaashvi from Deens Academy, Bangalore
Class : Class 9
D

Ans 16:

Kashyap Shankar from NPS, Singapore
Class : Class 6

Ans 17:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The answer B is correct ..... She cannot reach at the Bus Stop if she follows the directions in option A........

Ans 18:

Kairav Gupta from Bombay Scottish School, Mahim, Mumbai
Class : Class 4
Yes both A and B are correct. Answer is D.

Ans 19:

Dakala Murari from Indian school of excellence, Bangalore
Class : Class 4
Answer is D as both A and B are correct.

Ans 20:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 4

Ans 21:

Deepayan Das from South Point High School, Kolkata
Class : Class 6

Ans 22:

TANVI D MARGHADE from PODAR INTERNATIONAL SCHOOL POWAI, MUMBAI
Class : Class 6

Ans 23:

Vivaan A V from Loyola school, Jamshedpur
Class : Class 4
Both 'A' and 'B' are correct So answer should be 'D'

Ans 24:

Chetan Datta Rajavaram from Meridian madhapur, Hyderabad
Class : Class 10

Ans 25:

Muhammad Moosa khan from Eden Park International school, ANANTNAG
Class : Class 4
Answer is simply D (A and B)As both the paths take her to the bus top.

Ans 26:

Arman Singhal from Deens Academy, Bengaluru
Class : Class 9
Answer should be D as from both options A and B she can reach the bus stop.

Ans 27:

Omkar Deshmukh from phoenix greens international school, Hyderabad
Class : Class 7

Ans 28:

TANVI D MARGHADE from PODAR INTERNATIONAL SCHOOL POWAI, MUMBAI
Class : Class 6
D is the correct ans

Ans 29:

Krish Yuvaraja from Northvail Elementary school, PARSIPANNY
Class : Class 4
Answer D

Ans 30:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 7
Answer should be D

Ans 31:

vamsika from Yuva Bharathi Public school, coimbatore south
Class : Class 5
answer should be d. You are wrong ashwak and gopikrishna.

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Aryan Sirohi from Mount LItera Zee School, Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
the answer is D because it is full moon you brainless idiot,Shivam Dave

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Aryan Sirohi from Mount LItera Zee School, Bangalore
Subject :NSO    Class : Class 5

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Ganesh from Global Indian International School, Kuala Lumpur
Subject :NSO    Class : Class 8

Ans 1:

dhruv from Sri Aurobindo Memorial School, Bengaluru
Class : Class 9
it should be 59 minutes as amoeba undergoes binary fission every minute. therefore,half of the jar will be filled in 59 minutes.after a minute it undergoes binary fission and fills the jar.

Ans 2:

Shivom Shetty from Parle Tilak vidyalay ICSE, Mumbai
Class : Class 8

Ans 3:

Jaanvi Harish Marda from Shraddha Olympiad school, Ichalkaranji
Class : Class 4

Ans 4:

Utkarsh Jetly from g, ggn
Class : Class 9
See...it has to be B as the bacteria doubles every minute...considering this if the cup is full at 60 minutes, it has to be half 1 minute ago, i.e, 59 minutes

Ans 5:

MandarPalkar from KV DRDO, Bangalore
Class : Class 8

Ans 6:

Bhramana Roy from Glendale Academy International, Hyderabad
Class : Class 8

Ans 7:

VIDULA SINGH from MOUNT CARMEL SCHOOL DWARKA, NEW DELHI
Class : Class 8

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Annika from Apeejay School, Noida
Subject :NSO    Class : Class 9

Ans 1:

Dev Aditya Tomar from Khaitan Public School, Ghaziabad
Class : Class 5
Hi all, The answer is B. As first, nitrate convert into nitrite i.e. X. Then by denitrifying bacteria, nitrite gets converted into atmospheric nitrogen i.e. Y. After decomposition of dead plants and animals, complex nitrogen gets converted into ammonia by ammonification i.e. Z.

Ans 2:

Kinshuk from USPC Jain Public School , Ludhiana
Class : Class 9
A is correct and.

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