National Science Olympiad Forum By SOF Olympiad Trainer - Page 670
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Hritikrishna Panigrahi from Podar International School, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3

Ans 2:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 10
Option A says involuntary muscles are controlled by brain. It is correct as medulla controls all our involuntary actions. Option B and C are correct as the cardiac muscles are also called as smooth muscles, so statement d is incorrect as the muscles present in our arms and legs are called skeletal or voluntary muscles

Ans 3:

Pratul Kumar Sahoo from Presidium, Gurugram
Class : Class 4
d

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Hasini. N from chennai public school, thirumazhisai, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Kavitharini Joseph from HUS, Chennai
Class : Class 6
b is the correct answer.

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Aarit Arora from SOMERVILLE, DELHI
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

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

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Dikshita from BBPS Dwarka, NEW DELHI
Subject :NSO    Class : Class 6

Ans 1:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 7
hello Aminesh Pathak Bhaiya.*he is older than me and i am older than you

Ans 2:

Animesh Pathak from Bal Bharati Public School, Bilaspur(CHG)
Class : Class 6
because the numbers on the opposite faces of a dice always add up to 7. and 5+2=7

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Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Subject :NSO    Class : Class 1

Ans 1:

PRAANVI GUPTA from GEMS MODERN ACADEMY, DUBAI
Class : Class 1
D

Ans 2:

Avani satish kumar from DPS dubai, dubai
Class : Class 3
Ans: C

Ans 3:

Iksha from Vibgyorhigh, Pune
Class : Class 1
1. Jaya said all natural things can breathe. All natural things cannot breathe. Mountain is natural but cannot breathe.2. Rati said all non living things can be moved ( they can move by themselves). No, not all living things can move. Train can move, but it can only move with human's power.3.Sonu said man made things can reproduce. No, man made things cannot reproduce so the answer is D as all of them are incorrect

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Kavitharini Joseph from HUS, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
A as D shows criss crossed lines and equator isn't like that

Ans 2:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer should be D because equator is not slanting but if we mix equator and axis of the earth it will be criss crossed.

Ans 3:

Twisha Arora from Modern Vidya Niketan, Sector - 17, Faridabad, Haryana, FARIDABAD
Class : Class 7
The correct answer is D because if you draw the axis and the equator, it will make a sign like a tilted x and the option that most relates to the shape we've received is option D(Master Answer)

Ans 4:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
hey you inknoledgeble (SOF)

Ans 5:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
Awnswer is D

Ans 6:

Adhyoth Srinivas from Delhi public school north , Bangalore
Class : Class 6

Ans 7:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
(MASTER ANSWER) NONE OF THESE SHOULD BE THE ANSWER

Ans 8:

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

Ans 9:

spj2011 from DB, Chennai
Class : Class 5
The earth is tilted on its axis and the equator divides the earth into northern hemisphere and Southern Hemisphere. So, if we just imagine to remove the planet and just leave the axis and equator, we will get an X. To visualise take a piece of paper and rool it into a ball and draw a in the middle. Then tilt it a bit and you will get a model of the earth. Then it forms a X. So the answer is D.

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ESHA SINGHAL from DPS Noida , Indirapuram Ghaziabad
Subject :NSO    Class : Class 4

Ans 1:

vamsika from Yuva Bharathi Public school, coimbatore south
Class : Class 5

Ans 2:

Laiba from Olive International School , Doha
Class : Class 4
I thought it was D. :(

Ans 3:

Chinmayee from Dimensions , Singapore
Class : Class 4
Ans A

Ans 4:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
C is the anwser

Ans 5:

Abhra Joshi from Global City International School, Bangalore
Class : Class 4

Ans 6:

SS from meridian, hyderabad
Class : Class 5
a crowing will effect

Ans 7:

Anshuman raj from STCS, Karnal
Class : Class 9

Ans 8:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9
the options C and D are same

Ans 9:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
C is the anwser

Ans 10:

Samvita Patil from NHVPS, Bangalore
Class : Class 7
ahana bag, in option d the soil in more plants is less and in option c the soil in both the pots are same. Just wanted to tell that you might be blind!!

Ans 11:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7

Ans 12:

Saket Khurana from DPS E-CITY BENGALURU, BENGALURU
Class : Class 9
YAR AGAR NCO HOTA 2020 MEIN TO MAZA AATA KYON KI LAST YEAR MAIN THA WINNER

Ans 13:

Yatisha Goyal from Vibgyor High international School , Mumbai
Class : Class 5
C is correct

Ans 14:

Aarvi Gosai from The New Tulip International School, ahemdabad
Class : Class 4
SAKET is that u like do u do online classes if yes have u ever seen anyone by the name Aarvi Gosai and if no thenn ur NOT that Saket

Ans 15:

ANAY GUPTA from CMS KANPUR ROAD LUCKNOW, LUCKNOW
Class : Class 8
c is right

Ans 16:

Ashwak from Cambridge, Jalandhar
Class : Class 9
C

Ans 17:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Dear friends, see the question and the options clearly.As they have said in the question, the experiment is on how overcrowding affects plant growth.For that, the conditions in which the plant(s) are growing should be the same. That means that the amount of sunlight, amount of water, amount of soil and condition of soil should be the same, whereas the number of plants growing in one pot, should not..As we are assured in the question, they are already giving the same amounts of sunlight and water to the plants.We only have to see that the amount and condition of soil is the same, and that, my friends, is only in option 'C'.So, that i.e option 'C', is the correct answer.

Ans 18:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
They will see somesh

Ans 19:

Agnish Chakraborty from The Heritage School, Kolkata
Class : Class 7
Answer is option C.!

Ans 20:

Suhana Kedia from Griffin's international school, Kharagpur
Class : Class 5
Thanks so much Mohhika

Ans 21:

SAISH NAIK from LILAVATIBAI PODAR HIGH SCHOOL, MUMBAI
Class : Class 5

Ans 22:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer should be C because good soil means soil having essential nutrients and poor soil means the soil which is not having essential nutrients.In the option C,the checking of soil is by purity.In option D,the soil amount is different.

Ans 23:

Mohit Sahu from ,
Class : Class 4

Ans 24:

Ashwak from Cambridge, Jalandhar
Class : Class 9
C

Ans 25:

Vartika kumar from D P S Newtown, Kolkata
Class : Class 8

Ans 26:

somesh from Centre point katol road, Nagpur
Class : Class 6
No one will see mohhika

Ans 27:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
c answer is corect

Ans 28:

Shabd Satsangi from homeschool, Bangalore
Class : Class 5
my C and D are same

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ESHA SINGHAL from DPS Noida , Indirapuram Ghaziabad
Subject :NSO    Class : Class 4

Ans 1:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
the answer is a

Ans 2:

Shreshta from Presidium, Ghaziabad
Class : Class 3
I agree with harsh

Ans 3:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is A because the straight line shows in which temperature photosynthesis occurs best.

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Option ( A ) is correct because the graph shows that Photosynthesis best occurs at 35 degree Celsius

Ans 5:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
Option a

Ans 6:

Adersh from Apeejay, Nerul
Class : Class 4

Ans 7:

sharvari kunal aterkar from dcis Ahmedabad , AHMEDABAD
Class : Class 5

Ans 8:

Kiran from DPS, Bengaluru
Class : Class 4

Ans 9:

Ashwak from Cambridge, Jalandhar
Class : Class 9
* Harsh are you mad , the volume of oxygen collected at 15 degree Celsius is lower than the volume of oxygen collected at 40 degree Celsius *

Ans 10:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD
Class : Class 7

Ans 11:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
the answer can be both a and photosynthesis happen best at 35 degree cand the volume of oxygen collected in 15dc is more than 45dc.

Ans 12:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
the answer can be a and d

Ans 13:

Jyotsna from Gis, Bangalore
Class : Class 3
the answer is A

Ans 14:

RC from Vibgyor, Navi Mumbai
Class : Class 8
d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D

Ans 15:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10

Ans 16:

Chintan Kulkarni from LSMBSGS, Pune
Class : Class 4

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ESHA SINGHAL from DPS Noida , Indirapuram Ghaziabad
Subject :NSO    Class : Class 4

Ans 1:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is C because the graph is showing different levels of O2 in the atmosphere and Y has less oxygen in the atmosphere.

Ans 2:

Shaurya from Modern Public School, Bhiwadi
Class : Class 7

Ans 3:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
Option c

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Aashna from SVKM JV Parekh international school, Mumbai
Subject :NSO    Class : Class 4

Ans 1:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is D because Venus has the high amount of carbon dioxide which traps the heat of the sun.

Ans 2:

Biradar Mahendra from Jai Hind Public school Udgir , Udgir
Class : Class 4
D

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