National Science Olympiad Forum By SOF Olympiad Trainer - Page 585
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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

Ans 1:

TARUN from DAV, DHANBAD
Class : Class 8
Ans.- (B) X is Saccharomyces cerevisiae and is used to make wine. This process of conversion of sugar into alcohol in the absence of air(anaerobic respiration) is called Fermentation (Y)

Ans 2:

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

Ans 3:

TARUN from DAV, DHANBAD
Class : Class 8

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B

Microorganisms are used for the large scale production of alcohol, wine and acetic acid. Yeasts are mainly used in the commercial production of wine, beer and other alcoholic drinks. The main yeast species used is Saccharomyces cerevisiae. The process of conversion of sugar into alcohol is known as fermentation. 


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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

Ans 1:

Sahasra Shanker from KV IIT, Chennai
Class : Class 6
wow! they are so intelligent, I mean the white blood cells. could anyone please give a detailed explanation of this procedure of how it happens. thanks

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A

When a disease causing microbe (such as virus) enters body, some white blood cells produce chemicals called antibodies that surround the invader microbe. Once the virus has been surrounded by antibodies the white blood cell eats it.


Ans 3:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
thank you

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Kishore from National public school, Namakkal
Subject :NSO    Class : Class 8

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Shweta Garg from Vibgyor high, Vadodara
Subject :NSO    Class : Class 5

Ans 1:

SWAPNIL DATTA from JULIEN DAY SCHOOL KALYANI, KALYANI
Class : Class 10
Those are philosophical thoughts which we get in our brain. We are yet to confirm such theories.

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Shweta Garg from Vibgyor high, Vadodara
Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Please mention your query


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Sowmya Chandrasekaran from DAV GIRLS SENIOR SECONDARY SCHOOL, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
the ans is B

Ans 2:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
gcjftytrdmhfeahhfmihgvn

Ans 3:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
b

Ans 4:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
this question is very confusing between a and b pleeeeese master answer explain to us

Ans 5:

Riddhima Pandey from Chinmaya Vidyalaya, Bokaro Steel City
Class : Class 3
When we pollute the air most likely acid rain will occur so option a is wrong and option b is correct

Ans 6:

srijita sen from B.J.E.M school, Bhubaneswar
Class : Class 6
This question's answer is A, not B because, it pollutes the air but not the water.

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Explain master answerExplain to all of us and meHow is the answerB B B B B B B

Ans 8:

Mishika shah from little angels high school, gwalior
Class : Class 9

Ans 9:

Rishan Sandeep Gadhia from Orchids International, Mumbai
Class : Class 8
b is the answer because using recycled water is a method of conserving water

Ans 10: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 11:

ANAY GUPTA from CMS KANPUR ROAD LUCKNOW, LUCKNOW
Class : Class 8
you have given two options that are completely wrong so how can we decide which is correct or wrong

Ans 12:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
how the answer to this is bbbbb it is very confusing between a and b

Ans 13:

Mehvish Khursheed from DPSGV, ghaziabad
Class : Class 5
both A and B correct. Because A cause air pollution ,not water pollution so even A is correct. SOF should do corrections in such questions.

Ans 14:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Two options are confusing A and BA will be air pollution not water pollution please EXPLAIN this master answer you have NEVER EXPLAINED it to me always saying the answer is A or the answer is B or answer is C or D. But why is the answer A B C 0r D you should explain if you don't want to explain don't explain and don't give the answer also Then i'll tell SOF that the master answer from noida is giving the answer to us but not the explanation and in science if we have got the wrong answer then we should also get the explanation of every answer or else how will we understand the answer? we will have a doubt then what will we do

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

Ans 1:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
c

Ans 2:

RB from BHS, Kolkata
Class : Class 7
C

Ans 3:

somesh from Centre point katol road, Nagpur
Class : Class 6
Ccccccçcccccccccccccccccccccccccccçcccćccccc ccccccc ccccccc ccc

Ans 4:

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

Ans 5:

Shashank Reddy from Gyan Ganga International School, Pune
Class : Class 5
Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.

Ans 6:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7

Ans 7:

Sachin Handore from ,
Class : Class 1

Ans 8:

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

Ans 9:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8

Ans 10:

Mihika Talukdar from GARDEN HIGH, KOLKATA
Class : Class 4

Ans 11:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
But why is the option (C)? It should be (B)

Ans 12:

Suhana Kedia from Griffin's international school, Kharagpur
Class : Class 5
Ananjit Chander , there has to be MORE antelopes to support the energy needs of the lions !!!!!!

Ans 13:

Sachin Handore from ,
Class : Class 1

Ans 14:

Priyanshi from Delhi Public School, Gurugram
Class : Class 4
C is the correct answer

Ans 15: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is C.

Ram and Achin made the correct statements. Divya made an incorrect statement as the antelope population will be much more than the lion population in order to support the energy needs of the lion population. Ritu also made an incorrect statement because without the grass population, both antelope population and lion population will be negatively affected as lion feeds on antelope and antelope feeds on grass.


Ans 16:

Manan thorat from Podar powai, Mumbai
Class : Class 4
The answer is C Because ram and achin are correct.

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Devansh from asn senior secondary school, delhi
Subject :NSO    Class : Class 3

Ans 1:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
MY DEAR FRIEND ANS IS B SOLUTION'; THE COLUR OF MILK IS WHITE'BUT HERE IT IS WRITTEN RED

Ans 2:

Kashika Goel from DPS Noida, Noida
Class : Class 7
colour of milk is white. Here it is written red means white. We look backwards that means white is red so answer is red

Ans 3:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
MY DEAR FRIEND ANS IS B SOLUTION'; THE COLUR OF MILK IS WHITE'BUT HERE IT IS WRITTEN RED

Ans 4:

Aayman Aamir from DPS NOIDA, Noida
Class : Class 3
Hi my friend The answer is red.

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Arpita from Shakuntala vidyalaya , Chhattisgarh
Subject :NSO    Class : Class 6

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Sriram from DPS Modern Indian school , Doha
Subject :NSO    Class : Class 9

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