National Science Olympiad Forum By SOF Olympiad Trainer - Page 632

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3

Ans 2:

Class : Class 10
THE OPTION SHOULD HAVE BEEN CFC OR WE CAN TAKE THE OPTION D [NITROGEN] BUT IT IS SHOWING WRONG

Ans 3:

Class : Class 6
It is CNG

Ans 4:

Class : Class 6
The Ans shud be B Carbon Dioxide. BBBBBBBBBBB

Ans 5:

Class : Class 7

Ans 6:

Class : Class 10
The correct answer should be CFC

Ans 7:

Class : Class 7
I think the answer should be CFC but it is not in the options only.But I also think that it is CO2.

Ans 8:

Class : Class 4
CFCS should be correct answer but I got it right

Ans 9:

Class : Class 8
The answer is B as when we use electricity fuel gets burnt and so it produces carbon dioxide.

Ans 10:

Class : Class 4
the ans should be CFC

Ans 11:

Class : Class 5
Actually it is b ,as a is CNG(compressed natural gas which is a energy source that is not a greenhouse gas

Ans 12:

Class : Class 7
Chloro-fluro-carbon

Ans 13:

Class : Class 6
I GOT IT CORRECT

Ans 14:

Class : Class 5
The answer was supposed to be CFC .

Ans 15:

Class : Class 4
how the released gas from refrigerator is CO2

Ans 16:

Class : Class 3
the correct answer is CFCs .but is not mention in the option.

Ans 17:

Class : Class 6

Ans 18:

Class : Class 1
It should be CFCS

Ans 19:

Class : Class 5
correct answer is CFC

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The answer is D)

Ans 2:

Class : Class 8
answer is a

Ans 3:

Class : Class 5
ans is D

Ans 4:

Class : Class 8
the answer is d

Ans 5:

Class : Class 4
answer ddd

Ans 6:

Class : Class 9
dddddddanswer is D

Ans 7:

Class : Class 9
a

Ans 8:

Class : Class 7
answer is clearly a

Ans 9:

Class : Class 7
master answwer really

Ans 10:

Class : Class 6
WHY DEOS THE COPY PASTE BOT WORK

Ans 11:

Class : Class 4

Ans 12:

Class : Class 8
no,the ans is ' a 'as ,earthing aldready protetcts us ,so we do not need to get protection from earthing

Ans 13:

Class : Class 6
OH NOOOOO i dint know that earthing do this argh i haveg ot 9/10 my only question that was wrong is this

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
The correct answer is B as the bulb Y is in straight series and there is no change of current passing through it. And the curent gets equally divided among X and Y.

Ans 2:

Class : Class 10

Ans 3:

Class : Class 9
I think B or C is correct. Master Answer explain this

Ans 4:

Class : Class 10
*as if the one bulb was connected

Ans 5:

Class : Class 9
a is the correct answereverywhere

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8

Ans 8:

Class : Class 8
b is answer

Ans 9:

Class : Class 9
i think it is b

Ans 10:

Class : Class 10

Ans 11:

Class : Class 7
it is b only not c pls report an error

Ans 12:

Class : Class 10
I agree with Abhaid Goel.

Ans 13:

Class : Class 10
I agree with omkar,maitri,abhid etc all who are saying option B because we can read that another bulb 'Z' is connected in "PARALLEL" and not in "SERIES" and as we know , if we connect many bulb with same battery in a parallel circuit , they will give same brightness if the one bulb was connected , but the consumption of battery will also increase.So, according to me , there will be no change in bulb y (NORMAL)ans should be : option "A"

Ans 14:

Class : Class 6

Ans 15:

Class : Class 7
i agree with him too

Ans 16:

Class : Class 6
I think (A) is the answer because the explanation in the solution makes complete sense but technically it could also be (B)

Ans 17:

Class : Class 7
It should be B as no change of current is there in Y.

Ans 18:

Class : Class 10
correct answer should be option B because there is no change in the current passing through lamp Y.

Ans 19:

Class : Class 6

Ans 20:

Class : Class 3
yaa me 2 i think its b\

Ans 21:

Class : Class 7
I thought of B but after checking the solution I got it that it's A only, so the answer is A

Ans 22:

Class : Class 6
Shouldn't the answer be option B, because it makes the most sense. No electricity or amps or power is taken away from bulb Y. Why is it answer A?

Ans 23:

Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
The scientific name of WBC is leukocyte. There are 5 types of leukocytes namely: Basophils , Eosinophil, Neutrophil, Lymphocyte. The scientific name of red blood cells is erythrocytes. Maybe there is no scientific name for platelets or it may appear that I don't know it.

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Subject :NSO    Class : Class 6

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Subject :ICSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1

Ans 2:

Class : Class 10
To imagine beyond our limit

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Subject :NSO    Class : Class 6

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