National Science Olympiad Forum By SOF Olympiad Trainer - Page 495
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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:

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

Ans 2:

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

Ans 3:

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

Ans 4:

from ,
Class : Class 10
Yes it is definitely D

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

Ans 1:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 7

Ans 2:

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

Ans 3:

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

Ans 4:

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

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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:

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

Ans 2:

Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi
Class : Class 7
c, 15 is betwwen 1st and last student. gender of first and last student not known

Ans 3:

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

Ans 4:

Pranathi from GIIS, Kuala Lumpur
Class : Class 7
C

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

Ten male animals each of type X and Y were living together for few months in captivity in a well defined area (full of greenery). Other types of animals were not present in this area. Then an animal Z was introduced in this area. After few days, their numbers were counted as shown here.

  X      Y      Z
  10      2     1
What does this indicate?
A Z is a carnivore.
B Y is a herbivore.
C X is a herbivore.
D All of these


Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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 6:

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

Ans 7:

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 8:

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

Ans 9:

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

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

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 16:

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

Ans 17:

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

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

Ans 1:

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

Ans 2:

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 3:

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

Ans 4:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 9

Ans 5:

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

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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Catherine Janet from Jubilee hills public school, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Sanidhya Kapoor from Shikshantar, Gurugram
Class : Class 8
I do not understand this.why is the answer not C?if the circuit is closed then both bulbs should light up.

Ans 2:

A from Thakur, Mu
Class : Class 8
even i think its c

Ans 3:

reechik ghosh from dps, farakka
Class : Class 7
P should at least light up

Ans 4:

Catherine Janet from Jubilee hills public school, Hyderabad
Class : Class 7
Is solution available for this question?

Ans 5:

Sujal Gaglani from Vidya Vikasini School ICSE, Vasai
Class : Class 8
Please explain

Ans 6:

Mitesh from Shishya BEML Public School, Bengaluru
Class : Class 7
Why is it so ?It is a closed circuit,right?Then surely as a matter of sense it will be 'C'

Ans 7:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
there is no solution

Ans 8:

Tanmaya Kumar Rout from ALLEN Career Institute, GOVANDI, Mumbai
Class : Class 8
Wrong answer key

Ans 9:

Admin fly from Ddssxxx, Ax
Class : Class 1
why is there no solution for this question?

Ans 10:

Sanidhya Kapoor from Shikshantar, Gurugram
Class : Class 8
Can someone pls explain

Ans 11:

Rangnath sharma from MOUT LITERA ZEE SCHOOL, PATNA
Class : Class 9

Ans 12:

Akshay Jha from DPS NERUL, Navi Mumbai
Class : Class 7
The answer is C, there is no factor that even hints at P not glowing.

Ans 13:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
both p and q will bacome brighter beacause the voltage will increase

Ans 14:

Adwait Shiva from Udgam School For Children, Ahemdabad
Class : Class 9
It should be C

Ans 15:

Catherine Janet from Jubilee hills public school, Hyderabad
Class : Class 7

Ans 16:

ADWIKA from DAV, FARIDABAD
Class : Class 10

Ans 17:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10

Ans 18:

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

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Kishore Kadiyala from NPS, BANGALORE
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Samaira from Global Indian International School, Bangalore
Class : Class 8
I think it should be I-e and II-d..... The egg and cocoon stage is not the least active cuz THEY DONT EVEN EAT A BIT..... so yaaa

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

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