National Science Olympiad Forum By SOF Olympiad Trainer - Page 550
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vivaan sethi from GD goenka public school, Delhi
Subject :NSO    Class : Class 3

Ans 1:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 7
I think there are 9 food chains at all. Please check the diagram of the food web.

Ans 2:

Santina Suzanne from owis, bangalore
Class : Class 3
PLEASE explain why the answer is 9 and not 11.

Ans 3:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
11

Ans 4:

AARAVPRADEEP SAHU from PADMASESHADRI BALBHAVAN SENIOR SECONDARY SCHOOL, CHENNAI
Class : Class 3

Ans 5:

Vidhaan Srivastava from Apeejay, NEW DELHI
Class : Class 6

Ans 6:

Mahi from BIS , delhi
Class : Class 5
ans 9

Ans 7:

Parashuram from Vibgyor, BANGALORE
Class : Class 3
Study the given food web and select the correct option for the following questions. How many food chains are there in the food web? A 9 B 11 C 13 D 16ans is c

Ans 8:

Tejaojas Abhilash from Naipunya Public School , Kochi, Kochi
Class : Class 7
11 is correct acd acdi acde acdef acdefg acdeg hcdef hcde hcdeg hcd hbg

Ans 9:

Kashika Goel from DPS Noida, Noida
Class : Class 7
no 9

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Vishal B from National Public School, Chennai
Subject :NSO    Class : Class 6

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Hprakash09 from Billabong high Bhopal, Bhopal
Subject :NSO    Class : Class 6

Ans 1:

rethish from Veltech, Avadi
Class : Class 3
Cobalt, Nickel, and Steel are magnetic materials. But Stainless Steel is non-magnetic. There are several different types of stainless steel. The two main types are austenitic and ferritic. Ferritic stainless steels are generally magnetic, while austenitic stainless steels usually are not. Austenitic stainless steel is stainless steel added with nickel. so, the correct answer is Option D.

Ans 2:

Sucheta from Podar, Pune
Class : Class 8

Ans 3:

Nivedhini from Vivekanada Vidyalaya Chitlapakkam, Chennai
Class : Class 9
the answer is D

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Ishanvi B Nair from DPS Noida, Noida
Subject :NSO    Class : Class 1

Ans 1:

Arin Puri from Delhi Public School Noida, Nodia
Class : Class 2
answer should be B . Plant cannot die in absence of 1 food

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Bhavit Bansal from Vardhman International School, Jaipur
Subject :NSO    Class : Class 5

Ans 1:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8
Metal P expands less then Q and metal Q expands less than R. So, metal P expands less than R. If a bimetallic strip is heated it bends with metal which expands more on the outside and the metal which expands less in the inside. So the strip should bend downwards to complete the circuit for the bell to ring.Answer- A.

Ans 2:

Tasneem from FAIPS, kuwait
Class : Class 6
a

Ans 3:

tanmay chaudhry from BAL BHAVAN PUBLIC SCHOOL, New Delhi
Class : Class 4
aswer a jojojojojojojojojojojooojojjjjjojjojjjojoojjjooooojjjjjjjoooojjojojojojojojoo

Ans 4:

Inamul from Springs, Nilambur
Class : Class 9

Ans 5:

Tasneem from FAIPS, kuwait
Class : Class 6
a

Ans 6:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :NSO    Class : Class 6

Ans 1:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
Q is vitamin C ,not B.

Ans 2:

Shreyasi Padihary from The Cambridge International School , Bangalore
Class : Class 7
The correct answer is C

Ans 3:

MInnal Senthil from Prakriya, Bangalore
Class : Class 5
yes.citrus fruit is vitamin c

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Brinda Chakraverty from DPS Noida, Noida
Subject :NSO    Class : Class 5

Ans 1:

Ayush Banerjee from DAV Pune, Pune
Class : Class 3
C) Seeds which are dispersed by wind are usually carried to far off places due to their small size and light weight, e.g. , seeds of cotton and dandelion. similarly, seeds dispersed by water are also light and can easily float and carried to far off places by water, e.g. , seeds of coconut. dispersed by animals seeds of guava can be carried by human beings and animals to nearer as well as long distance from the parent plant. Explosive action of some seeds peas and balsam scatter away from the parent plant but it usually cannot enable the seeds to be dispersed far off places.

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
C

Ans 3:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
Answer is C

Ans 4:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 10
thanks

Ans 5:

Sumit Biswal from Dps gandhinagar, Gandhinagar
Class : Class 7

Ans 6:

Navyaa Kalra from DPS Noida, NOIDA
Class : Class 5
ANS IS C!!!!!!!!!!!!!!!!!!!!!

Ans 7:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 8:

Ayush Banerjee from DAV Pune, Pune
Class : Class 3
C) Seeds which are dispersed by wind are usually carried to far off places due to their small size and light weight, e.g. , seeds of cotton and dandelion. similarly, seeds dispersed by water are also light and can easily float and carried to far off places by water, e.g. , seeds of coconut. dispersed by animals seeds of guava can be carried by human beings and animals to nearer as well as long distance from the parent plant. Explosive action of some seeds peas and balsam scatter away from the parent plant but it usually cannot enable the seeds to be dispersed far off places.

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Manvi Mundepi from Montfort School Roorkee, Roorkee
Subject :NSO    Class : Class 6

Ans 1:

Nivedhini from Vivekanada Vidyalaya Chitlapakkam, Chennai
Class : Class 9
Hi!! I am nivedhini you are answered my question please see that again

Ans 2:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 9
what do you want to say Nivedhini i'm not able to understand you,there are much gramatical mistakes

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :NSO    Class : Class 6

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Divyansh Pradhan from Modern Vidya Niketan, Faridabad
Subject :NSO    Class : Class 2

Ans 1:

Jancy from Podar, Bangalore
Class : Class 5
Dinner

Ans 2:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 6

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