National Science Olympiad Forum By SOF Olympiad Trainer - Page 549
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Ayushi from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
C

Ans 2:

Vaibhav from The Millennium School , Dubai
Class : Class 8
The answer is (D).

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
The answer must be D . Super NovaBecause in nova no explosion happens while in Supernova it is the end of the life of the star and explosion occurs.

Ans 2:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 3:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
No its d super nova

Ans 4:

ANVITA from KENDRIYA VIDYALAYA NO.1, CALICUT, KOZHIKODE
Class : Class 9
The answer is C. Nova

Ans 5:

Jagadarsh Meda from Sri Vidyanjali, Hyderabad
Class : Class 8
The Answer is Nova. C

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus water's temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp It is correct

Ans 2:

Shubhangam Raj from Don Bosco Academy, Patna
Class : Class 8
B

Ans 3:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus WATER'S temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp it is correct

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

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Garv Makkar from Modern Delhi Public School, Faridabad
Subject :NSO    Class : Class 9

Ans 1:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9
Answer is D

Ans 2:

from ,
Class : Class 10
Yes it is definitely D

Ans 3:

Raghav Tyagi from birla vidya niketan, new delhi
Class : Class 10
yes you're right answer is d

Ans 4:

sujal saronit from Delhi Public School , rourkela
Class : Class 9
Answer is Dconfirm !!

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Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
A

Ans 2:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 8

Ans 3:

Alpesh Mondal from PM SHRI KENDRIYA VIDYALAYA CHITTARANJAN, chittaranjan
Class : Class 7
file:///C:/Users/Amit/Downloads/MicrosoftWindows.Client.CBS_cw5n1h2txyewy!InputApp/ConfusionGIF.gif

Ans 4:

Alpesh Mondal from PM SHRI KENDRIYA VIDYALAYA CHITTARANJAN, chittaranjan
Class : Class 7

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adu from CHSV, Chennai
Subject :NSO    Class : Class 6

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Rishabh Venkat from VSA Bangalore, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi
Class : Class 9
c, 15 is betwwen 1st and last student. gender of first and last student not known

Ans 2:

Pranathi from GIIS, Kuala Lumpur
Class : Class 7
C

Ans 3:

Yash Arya from Sharda Vidya Mandir, Bhopal
Class : Class 7
option c

Ans 4:

Yash Arya from Sharda Vidya Mandir, Bhopal
Class : Class 7
option c

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Deepak Vijayaragavan from Greenwood High, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
But then (to continuation of solution) how did number of X animal remain the same?MASTER ANSWER from Revisewise Noida please EXPLAIN.

Ans 2:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6

Ans 3:

Shreeya Samant from Rustomjee Cambridge, Vasai Virar
Class : Class 4
Y is a herbivore

Ans 4:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
A

Ans 5:

Bhavya Sheth from Bright Day School, Vadodara
Class : Class 6
If Z is a carnivore sof then how did X population remains same ?

Ans 6:

Koyel Biswas from Adamas World School, Kolkata
Class : Class 5
IF X AND Y ARE BOTH HARBIVORES THEN WHY DIDNT Z EAT X? SO I THINK X WILL BE CARNIVORE

Ans 7:

Kailash V from PS Senior Secondary School, Chennai
Class : Class 6

Ans 8:

Sachin Handore from ,
Class : Class 1
The area is full of greenery as mentioned so the herbivore population will increase and as we know carnivores depend on other animals for prey so their population will decrease as they do not eat plants

Ans 9:

viha from Silver Oaks International School, Sarjapur, Bangalore
Class : Class 4
I think X is the carnivore right?

Ans 10:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6
is x a giraffe or a elephant

Ans 11:

Utsavi Priya from DPS RUBY PARK, KOLKATA
Class : Class 8

Ans 12:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
bhavya in opinion you are correct

Ans 13:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6

Ans 14:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
I think X is carnivore and their(X

Ans 15:

Shreeya Samant from Rustomjee Cambridge, Vasai Virar
Class : Class 4
Y is a herbivore

Ans 16:

Amogha from Hindustan international school, Guindy, Chennai
Class : Class 8

Ans 17:

Rishan Sandeep Gadhia from Orchids International, Mumbai
Class : Class 8
if x and y were herbivores and z is a carnivore then why did z eat only y and not x

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Awesomness from DPS East, Bengaluru
Subject :NSO    Class : Class 8

Ans 1:

Shubhangam Raj from Don Bosco Academy, Patna
Class : Class 8
D

Ans 2:

kaushika semwal from Ashok Academy, Mumbai
Class : Class 8
I THINK IT'S "D"

Ans 3:

Newaan Bhardwaj from ahlcon international school, Delhi
Class : Class 7
it is c because concave mirror is used in a solar cooker

Ans 4:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 10

Ans 5:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
It is C Because concave mirror is used in solar cooker not plane mirror.

Ans 6:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
its c as solar cookers have concave mirror and not plane mirror

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