National Science Olympiad Forum By SOF Olympiad Trainer

Samarth Sabari from GIIS, Singapore

Subject :NSO Class : Class 4

Kusum categorised animals on the basis of their habitats. She made three groups of three organisms each. By mistake, she placed one wrong member in each group. Identify the wrong member and select the correct option.
Group 1- Penguin, Camel, Polar bear
Group 2- Kangaroo rat, Meerkat, Muskox
Group 3- Dolphin, Pomfret, Hedgehog

APenguin of group 1 should be interchanged with pomfret of group 3.
BPenguin of group 1 should be replaced with snake.
CCamel of group 1 should be interchanged with muskox of group 2.
DHedgehog of group 3 should be replaced with jellyfish.

Reference of jellyfish in question has to be replaced with with silverfish

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Ans 1:

Sreejani Bhaduri from National Public School, Bangalore

Class : Class 9

What!!!!!!'!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!L!!!!!!!!!K!!!!!!!!J!!!!!!!!!!L!I!!Kffuguhguhuhihhhfyfhvhv

Ans 2:

Anika S Kumar from Alphabets International school , Chennai

Class : Class 7

D

Ans 3:

Nirvi Pal from jasudben ML School, mumbai

Class : Class 5

Ans 4:

Swarnava Pal from Vivekananda Mission School, Haldia

Class : Class 8

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Ans 5:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

Both C and D are correct because if Kusum did both of these all three groups are correct so they should keep C and D in the different positions like A

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

D would be A

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

D

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Ashher Pervez from DPS Bhilai, Bhilai

Subject :NSO Class : Class 6

Kim ranks twelfth from the top in a class of forty six students. What will be her rank from the last ?

A33^rd
B34^th
C35^th
D37^th

The answer is C, 35th but the trainer is showing the answer B. Do you agree with me?

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Ans 1:

Varuni from Manasarowara pushkarini vidyashrama , Mysuru

Class : Class 5

It is c

Ans 2:

Saanvi from rvk, bengaluru

Class : Class 9

the answer must be 35th

Ans 3:

from , Jhalda

Class : Class 7

C

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Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur

Subject :NSO Class : Class 5

A news flashed on TV that people died in a/an X in Ladakh. The X here can be_____________. A.Tsunami B.Sandstorm C.Avalanche D.All of these

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Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur

Subject :NSO Class : Class 5

A news flashed on TV that 70 people died in a/an X in Ladakh. The X here can be__________.

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Ans 1:

AREEN from BOLTON, HYDERABAD

Class : Class 6

Simple. It's avalanche. An avalanche is a disaster which happens because of rolling and falling of a big snowball downhill.

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Pransh Vashishtha from Chail Public School Chail Chowk, Chail Chowk

Subject :NSO Class : Class 9

A stone is allowed to fall from the top of the tower 100 m high and at the same time another stone is projected vertically upwards from the ground with a velocity of 25 m/s. The two stones will meet above the ground at height of

A 20 m
B 10.2 m
C 11.2 m
D 15.5 m

All options are wrong

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Ans 1:

Praveen Tiwari from St Joseph high school, Maharajganj

Class : Class 9

Maharajang

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Pransh Vashishtha from Chail Public School Chail Chowk, Chail Chowk

Subject :NSO Class : Class 9

The height at which the acceleration due to gravity becomes g/9 (where g is the acceleration due to gravity on the surface of the Earth) in terms of R, the radius of the Earth is

A 2R
B
C R/2
D