National Science Olympiad Forum By SOF Olympiad Trainer - Page 289
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Sujal Anand from Delhi World Public School, Jamshedpur
Subject :NSO    Class : Class 8

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 4

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

There two 'S' in the word 'COSMOS' so, 'COSMOS' cannot be made from the given word.


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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 4

Ans 1:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Well, why don't they teach all this stuff in the synopsis?!They should, but, Admin from revisewise is correct.

Ans 2:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2
The person called admin is correct

Ans 3:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
I think that he/she is.

Ans 4:

Kavin from ISG , Muscat, Muscat
Class : Class 5
snow white are you too selected this year 2020-2021

Ans 5:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Admin is correct

Ans 7: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B

Tweezers are third class lever whereas see-saw, crowbar and scissors are first class levers.


Ans 8:

Om Satish Punse from Terna Orchid the international school koparkhairne, Navi mumbai
Class : Class 7
What are first class levers and second class levers?

Ans 9:

Syed Hrehaan Ahamed from Bahrain Indian School, Manama
Class : Class 8

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Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B

 Embankment is built on the banks of the river. It stops the water of the river from flooding the fields.


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SANJEEV VARSHNEY from Lotus valley international school, Noida
Subject :NSO    Class : Class 7

Ans 1:

Rithvik from BVM Global, Chennai
Class : Class 8
True plastic is a BAD CONDUCTOR but it’s not an INSULATOR right? So possibly it would naturally take some time .

Ans 2:

Srijan Anand from VIBGYOR HIGH, Bangalore
Class : Class 7
Plastic is not a good conductor of heat. So how should the answer be A?

Ans 3:

Anshika Minocha from DPS Vasant Kunj, NEW DELHI
Class : Class 8
I agree.

Ans 4:

Trina from Ganges Valley School, Hyderabad
Class : Class 9
plastic is a bad conductor then it would be C

Ans 5:

Archishman Pal from Sri Krishna Mission School, Agartala
Class : Class 8
I agree with Srijan Anand !!!

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Necro from New Tulip international school, Ahmedabad
Subject :NSO    Class : Class 7

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student from school, city
Subject :NSO    Class : Class 7

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ZEHRA MAZHAR from GAIL D A V SCHOOL PUBLIC SCHOOL, AURAIYA
Subject :NSO    Class : Class 4

Ans 1:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 8
ADMIN YOUR MASTER ANSWER CORRECT

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B

A. Incorrect - The first metro service was inaugurated in Kolkata in 1984 by former Prime Minister Indira Gandhi.
B. Correct 
C. Incorrect - Transport facilities are necessary for International trade.
D. Incorrect - Auto rickshaw are used by passengers to travel short distances in the same city or village.


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AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Subject :NSO    Class : Class 8

The given diagram shows nitrogen cycle in the ecosystem. P, Q, R, S and T represent different chemical conversion steps in the cycle.


Which process (P - T) is correctly paired with the organismal group performing that step?
I. P Nitrobacter
II. Q Bacteria symbiotic with plants
III. R Denitrifying bacteria
IV. S Nitrifying bacteria
V. T Nitrogen fixing bacteria, such as Rhizobium or cyanobacteria

AIII, IV and V
BIV and V
CI, III and IV
DIII and IV


c=correct answer

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C


Ans 2:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7

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