National Science Olympiad Forum By SOF Olympiad Trainer - Page 692

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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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 C.

Ans 2:

Class : Class 4

Ans 3:

Class : Class 9
Aarush , there will be not enough plants to feed so many water insects . So, at a particular time all plants will finish . So , there will be nothing left for the water insects so they will also die !

Ans 4:

Class : Class 5
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Ans 5:

Class : Class 4
In the given food chain, tadpole feeds on water insect and in turn is eaten by small fish. If population of tadpole will decline with time then small fish population will also decrease as former is the food of later. On the other hand, water insect population will be positively affected because in the absence of predator prey population reproduces and flourishes.

Ans 6:

Class : Class 5
C

Ans 7:

Class : Class 4
ans is c

Ans 8:

Class : Class 3
The correct answer is c

Ans 9:

Class : Class 4
the correct answer is C

Ans 10:

Class : Class 8
The correct answer is C because if organism X wipes out all tadpoles in the community, then water insects' population grows with nothing to eat them. The small fish die because they have nothing to eat, and soon the big fish die too.

Ans 11:

Class : Class 4

Ans 12:

Class : Class 7
correct answer is C

Ans 13:

Class : Class 6

Ans 14:

Class : Class 4
The answer is C

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

Ans 2:

Class : Class 8
Sorry ,answer is A .I gave wrong explanation why .You have told arerespectively, so gas 1 is carbon dioxide and gas 2 is oxygen.You have given the order as 1 and 2 i.e. carbon dioxide and oxygen.So ,we will say it as 2 and 1 i.e oxygen and carbon dioxide .Hence answer is A.

Ans 3:

Class : Class 8
ans is A as the order of gases will not change

Ans 4:

Class : Class 3
We Don't know that plants breath oxygen in night

Ans 5:

Class : Class 3
Answer is D because at night plants take in oxygen and give out carbon-di-oxide whereas we humans always take in oxygen and give out carbon-di-oxide.

Ans 6:

Class : Class 5
A

Ans 7:

Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
ANS should be a

Ans 3:

Class : Class 3
nonsense question

Ans 4:

Class : Class 3
understood

Ans 5:

Class : Class 7

Ans 6:

Class : Class 3
i cant understand the second question c] or b]?

Ans 7:

Class : Class 9
The images given in Options A, B and D are symmetrical images. That means all three have at least one line of symmetry. Line of symmetry is any line drawn through the image which divides the image into two exactly equal parts, and these parts are mirror images of each other. A.The part above the red line (line of symmetry) and the 7part below the red line are mirror images of each other.7410`1 B.The parts on both sides of the red line (line of symmetry) are mirror images of each other. C.There can be no line of symmetry that can divide this image into two equal parts which are mirror images of each other. D.The part on the left side of the red line (line of symmetry) and the part on the right side of the red line are mirror images of each other. Hence, Option C is the odd one out.

Ans 8:

Class : Class 7

Ans 9:

Class : Class 4
Figure A can be folded horizontally, figure B can be folded diagonally, figure D can be folded vertically to get their mirror images whereas figure C is asymmetric, so the odd one out is figure C

Ans 10:

Class : Class 9

Ans 11:

Class : Class 6
why?

Ans 12:

Class : Class 9
why

Ans 13:

Class : Class 3
Answer is asymmetrical figure, because all the other figures are symmetrical.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
I. This is so EZ.t can be c as N is on the top and S is down plus when the north recives cold it is hot in the south and when the south is cold it is hot in the north

Ans 2:

Class : Class 7
correct answer is C

Ans 3:

Class : Class 7
please give explanation Admin.

Ans 4:

Class : Class 6
C

Ans 5:

Class : Class 5
how do you all know the correct answer is 'C' when everything seems correct.

Ans 6:

Class : Class 4
D is correct

Ans 7:

Class : Class 9
C

Ans 8:

Class : Class 4
explain please

Ans 9:

Class : Class 9
The answer is C

Ans 10:

Class : Class 5
C

Ans 11:

Class : Class 4
no u DUMMIES! winter should be on the east side of the earth and summer on the west and Goutham this question is sooooo WRONG! and ur wrong Goutham

Ans 12:

Class : Class 5
please explain how is it c?

Ans 13:

Class : Class 6
d

Ans 14: (Master Answer)

Class : Class 1

The correct answer is C.


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
the answer is a but i did it c

Ans 2:

Class : Class 8
The question is asking to select the incorrect question, but option C is correct and option A is wrong so A is the correct answer

Ans 3:

Class : Class 9
its a

Ans 4:

Class : Class 9
c

Ans 5:

Class : Class 10
Soumya raj is correct answer should be c as ball and socket joint is only found in legs and arms and it is definitely not found in the skull .

Ans 6:

Class : Class 5

Ans 7:

Class : Class 8
good question sligjhtly tricky

Ans 8:

Class : Class 7
I did it c but according to SOF, it is a.

Ans 9:

Class : Class 4
Answer a

Ans 10:

Class : Class 9
I think the answer is A

Ans 11:

Class : Class 5
Nice question

Ans 12:

Class : Class 6
correct answer is supposed to be C. But according to SOF it is A.

Ans 13:

Class : Class 6
EASY. It is a). FOund it very quickly. I wonder why many of you put c)

Ans 14:

Class : Class 5

Ans 15:

Class : Class 7
All of them are incorrect so the answer is D

Ans 16:

Class : Class 4
p is not pivot joint but a ball and socket joint but according to me c is the correct ans

Ans 17:

Class : Class 1
The correct ans is A.

Ans 18:

Class : Class 8
The correct answer is a but i did it wrong... (i did ans C)

Ans 19:

Class : Class 6

Ans 20:

Class : Class 4
cool question

Ans 21:

Class : Class 4
D

Ans 22:

Class : Class 6
Soumya raj is correct

Ans 23:

Class : Class 7
SOF is wrong . The answer should be C as Ball and socket joint is only found in arms and legs . It cannot come in the skull . Smita De is also absolutely right .

Ans 24:

Class : Class 4
iojkbn

Ans 25:

Class : Class 5
actually the picture P is wrong . they want to express it as pivot joint.

Ans 26:

Class : Class 5
Correct answer is C

Ans 27:

Class : Class 5
but read the question... you have to select the incorrect ans

Ans 28:

Class : Class 9
It's simple

Ans 29:

Class : Class 7
WTH?

Ans 30:

Class : Class 9
OH mene to d kiya tab laga ki sab wrong the.oh my god now acinfusing yar

Ans 31:

Class : Class 5
The correct answer is A) according to SOF

Ans 32:

Class : Class 9

Ans 33:

Class : Class 10
Yes, it is true, we can compare the movement to the joint mentioned as "P" with that of a joystick. It is a ball-socket joint, and it is found in the shoulders and the hips.

Ans 34:

Class : Class 7
But a is the answer .

Ans 35:

Class : Class 4

Ans 36:

Class : Class 8
And the question said to find the incorrect option! So a.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

Ans 2:

Class : Class 7
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
I think the answer is C. If it contains H+ ions less than OH- ions, the substance is a base.

Ans 2:

Class : Class 9
base turns yellow with methyl orange.

Ans 3:

Class : Class 10
i agree@anurag

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