National Science Olympiad Forum By SOF Olympiad Trainer - Page 550

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 6
Ans is C because lungs are protected by the ribcage and exchange of gases happen in lungs' bronchioles.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
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Ans 2:

Class : Class 5
We have to add the numbers 1 2 5=84 4 0=83 2 3=81 0 8=9Hence,answer is D

Ans 3:

Class : Class 9
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Ans 4:

Class : Class 5
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Ans 5:

Class : Class 10
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Ans 6:

Class : Class 9
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Ans 7:

Class : Class 7
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Ans 8:

Class : Class 7
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Ans 9:

Class : Class 8
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Ans 10:

Class : Class 10

Ans 11:

Class : Class 5
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Ans 12:

Class : Class 8
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Ans 13:

Class : Class 8
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Ans 14:

Class : Class 6
why cant this be in relation to prime number so that the answer is 323; it's silly to have 8 as sum for a class 5 student

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Explain pls

Ans 2:

Class : Class 7
Explain

Ans 3:

Class : Class 3
Explain it

Ans 4:

Class : Class 6
Group 1 is carnivores and Group 2 is herbivores

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
A

Ans 2:

Class : Class 8

Ans 3:

Class : Class 5

Ans 4:

Class : Class 3
the third one is wrong

Ans 5:

Class : Class 5
The third one is the correct answer

Ans 6:

Class : Class 9
d

Ans 7:

Class : Class 4

Ans 8:

Class : Class 3
A

Ans 9:

Class : Class 7
Answer should be option A

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
(B)

Ans 2:

Class : Class 3
B

Ans 3:

Class : Class 6
But no force is acting on the book

Ans 4:

Class : Class 4
The answer is (B) as the book is under gravitational force that's why the book is on the table.

Ans 5:

Class : Class 5
everyone i;m a teacher

Ans 6:

Class : Class 7
B is the answer bbbbbb. that'ss whyyy the book is o on tabblee.

Ans 7:

Class : Class 5
nope i

Ans 8:

Class : Class 4
how is gravitational force acting on the cup?

Ans 9:

Class : Class 9
b is answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
answer is B because Oil spill is the condition when mineral oil or petroleum oil being carried on a ship gets spilled in the sea due to some reason. This causes death of aquatic organisms. Oil gets coated on feathers of aquatic birds making them unable to fly and to regulate their body temperatures. This causes death of the birds.

Ans 2:

Class : Class 6
sorry by mistake i have written B but the answer is C

Ans 3:

Class : Class 6
Ans is C because due to oil spill fishes die because it happens in water. Also, aquatic birds get covered with black coating because of that they can't breathe and they die.

Ans 4:

Class : Class 7
C , oil spill

Ans 5:

Class : Class 5

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
A

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
How is this the answer ?

Ans 2:

Class : Class 4
black gold is another name for petroleum or crude oil but according to SOF it is granite I think there is some error in this question from SOF

Ans 3:

Class : Class 10
In my case, I feel that (A)is a suitable answer. But the correct option is (C). Why?

Ans 4:

Class : Class 10

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7
I prefer option C.

Ans 7:

Class : Class 5
THE CORRECT ANSWER IS C, BECAUSE BLACK GOLD IS ANOTHER NAME FOR CRUDE OIL OR PETROLEUM .

Ans 8:

Class : Class 8

Ans 9:

Class : Class 6
Ans is C because Black Gold is another name for coal.

Ans 10:

Class : Class 1
Ans 6 is absolutely right. Ans is C.

Ans 11:

Class : Class 9
I think it should be A as it says that option C is Black Gold is another name for granite, but Black Gold is another name for petroleum.

Ans 12:

Class : Class 5
c is the correct answer

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