National Science Olympiad Forum By SOF Olympiad Trainer - Page 457

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
It should be B

Ans 2:

Class : Class 7
It should be B

Ans 3:

Class : Class 6
B

Ans 4:

Class : Class 8
a

Ans 5:

Class : Class 6
C no.

Ans 6:

Class : Class 6
it is d not c

Ans 7:

Class : Class 8
C is NOT THE ANSWER

Ans 8:

Class : Class 1
Actually this ques. is wrong becuz there couldn't be a change with the properties of physical and chemical.

Ans 9:

Class : Class 9
actually a change cannot be physical and chemical change as Physical : A change in which composition of matter does not change.Chemical : A change in which composition of matter does not change.They are opposite changes.There is no correct answer!

Ans 10:

Class : Class 9
THERE IS NO CORRECT ANSWER IN THIS QUESTION!!!!!!

Ans 11:

Class : Class 7
There is NO correct answer.

Ans 12:

Class : Class 9
not cit is b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
it is '' C ''

Ans 2:

Class : Class 4
WE need to select the incorrect pair. hence answer is D.

Ans 3:

Class : Class 5
The correct answer cannot be A it will be B

Ans 4:

Class : Class 7
It's wrong because Football is an outdoor game and chess is an indoor game so the ans is "C"

Ans 5:

Class : Class 5
Why would the answer be D ?

Ans 6:

Class : Class 5
why would the answer be d it is c i am sure

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 7
The ans,shoud be d

Ans 2:

Class : Class 2
A bottle gourd is a climber. So D option is correct

Ans 3:

Class : Class 2
Yaa it’s bottle gaurd

Ans 4:

Class : Class 6
D OPTION IS CORRECT

Ans 5:

Class : Class 3
oggy

Ans 6:

Class : Class 5
The answer should be D

Ans 7:

Class : Class 2
A bottle gourd is a climber not a creeper. so the answer should be- D

Ans 8:

Class : Class 3
it is a corn not a bottle gourd so it should be a!

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
it must be carbon dioxide

Ans 2:

Class : Class 7
it should be carbon dioxide (CO2)

Ans 3:

Class : Class 7
A

Ans 4:

Class : Class 9
It is not.It is carbon dioxide.(a)

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
It will be A.Good evening.

Ans 3:

Class : Class 4
What will be the position of sun for good afternoon then ?

Ans 4:

Class : Class 3
Why not good afternoon. In most of the parts of the world evening is time when sun sets, so practically there won't be any shadow. Also by looking at the picture it looks more around 2-3PM. Good afternoon looks appropriate answer.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
LolWrong question.

Ans 2:

Class : Class 8
The student is studying soil erosion. The top soil collected is maximum, so it is easily eroded. Answer- A. Top soil is easily eroded.

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Subject :NSO    Class : Class 4

Three uniform planks, P, Q and R are balanced on pivots. Two equal forces, each of value F, act on each plank but in different manners as shown in the figure.Which of the following options is correct regarding this?


APlank P will either bend or break.
BPlank Q will show no movement at all.
CPlank R will be pulled up the pivot.
DPlank P will show no movement at all.


if equal is being applied on Q....on the left lower and right upper end.... wont it balance out and not make Q move? How is option B correct?

Ans 1:

Class : Class 9
The correct answer is D

Ans 2:

Class : Class 4
answer is d

Ans 3:

Class : Class 8
B

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Subject :NSO    Class : Class 6

Read the statements regarding the given food web and select the option that consists of all correct statements.

(i) There are 7 interconnected food chains in the given food web.
(ii) Snake and fox serve as top consumers in the given food web.
(iii) Snake serves as primary, secondary as well as tertiary consumer in the given food web.
(iv) If populations of rat and rabbit are removed from this community then populations of snake and fox will be equally affected negatively.
(v) There are four primary consumers and two secondary consumers in the given food web.
(vi) If the populations of top consumers are removed from this food web then populations of all primary consumers of web will decline.

A(iv) and (v) only
B(i), (iii) and (v) only
C(i) and (ii) only
D(ii), (iv) and (vi) only


The answer should be - d

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
i am the god of explanation the two primary consumers are sreeram dps and kanveent kaur

Ans 3:

Class : Class 6

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
Explanation please.

Ans 6:

Class : Class 6
YOU AS WELL ADVAIT HAHAHAHAHAHAHAHA

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
a

Ans 2:

Class : Class 9
A

Ans 3:

Class : Class 5
A

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
b aka 48

Ans 3:

Class : Class 6

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8
The next number is got by adding 8 .16 8 = 24, 24 8 = 32 and 32 8 = 40. So, 40 8 = 48Answer-B. 48

Ans 6:

Class : Class 6
adition of 8 simple plause

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