National Science Olympiad Forum By SOF Olympiad Trainer - Page 437

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 4
Pygmy shrew

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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

Three different types of materials X, Y and Z were used in the experiment shown below here. In both circuits, the bulbs lighted up.

Another different circuit was set up and three of the materials were placed at three different positions, Q1, Q2 and Q3.

Based on the above circuits, which one of the following is wrong?
Positions in the circuit--- Light bulbs

Q1 Q2 Q3 B1 B2 B3
A X Y Z No Yes No
B Y Z X Yes Yes No
C Z X Y Yes No Yes
D X Z Y No No No


not understanding

Ans 1:

Class : Class 7
ANSWER IS B

Ans 2:

Class : Class 5
someone please explainnnnn

Ans 3:

Class : Class 6
Very good question. Here object X is a insulator but the bulbs glow up because of parallel connection of circuit. So according to that, option A is wrong and is the correct answer.

Ans 4:

Class : Class 7
Read the question carefully kids!

Ans 5:

Class : Class 8
It says which one is wrong, not right

Ans 6:

Class : Class 3
And is A since X is insulator it doesn't allow electricityTo pass through so nothing glows

Ans 7:

Class : Class 6
Answer supposed to be b

Ans 8:

Class : Class 7
Can someone explain it ,please??

Ans 9:

Class : Class 10
The answer is C as if assume x as a insulator , all other condition satisfy

Ans 10:

Class : Class 7
plz answer

Ans 11:

Class : Class 10

Ans 12:

Class : Class 3
pls explain

Ans 13:

Class : Class 10

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Its Option D

Ans 2:

Class : Class 7
Option D is the right answer. The Solution also tells the same then how can they say our answer is wrong?? Try putting this question in the "ERROR" box

Ans 3:

Class : Class 9
The answer has to be D because they have asked for the incorrect option

Ans 4:

Class : Class 4
answer should be A. They have asked for the INCORRECT OPTION and A is incorrect. Earthworm uses skin not trachea. The answer is A. It also appears in my solution

Ans 5:

Class : Class 7
but the question says to choose incorrect answer

Ans 6:

Class : Class 9
Answer should be D. Solution provided by them says so too.

Ans 7:

Class : Class 7
Option D

Ans 8:

Class : Class 7

Ans 9:

Class : Class 7
Q also can be cockroach. Thus in my OPINION C can also be the answer

Ans 10:

Class : Class 8
eplanation given is correct but answer is option d

Ans 11:

Class : Class 7
Option D is the right answer

Ans 12:

Class : Class 7
Answer is C

Ans 13:

Class : Class 7
Forget about the Option C. Option D is the right answer.

Ans 14:

Class : Class 7
Wrong answer provided . Even the solution says answer d

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Also, d is right. Attraction is a sure test for magnetism. both b and d are right. Compromised?

Ans 2:

Class : Class 10
The correct answer is option B . A compass may be used to find East and west direction . Once you find North and South , by facing north , the right side will be East and left one will be West

Ans 3:

Class : Class 6
both b and d are correct.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
as per Wikipedia no volcano had erupted on Venus in the past 2.5 million years so 2 is the only correct option

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5
How is 1 correct? Please reply

Ans 4:

Class : Class 5
Please correct it

Ans 5:

Class : Class 9
no volcano had erupted on Venus in the past 2.5 million years so 2 is the only correct option

Ans 6:

Class : Class 7
2 and 4 is the answer to this question

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Subject :NSO    Class : Class 5

Study the given passage.
X, Y and Z are different parts of the brain. X controls musculo-skeletal movement, Y controls learning ability and memory and Z controls activities such as breathing, heartbeat and blood circulation. Identify X, Y and Z and select the incorrect statement regarding them.

AX is the largest part of the brain whereas Z connects the brain to spinal cord.
BY is the upper part of brain also controls our sense organs.
CZ is also called brain stem and it works even when we are asleep.
DX is located below Y towards the back of the brain.


Ans 1:

Class : Class 6
this question is wrong

Ans 2:

Class : Class 5

Ans 3:

Class : Class 7
THERE CHECKING IS WRONG AS ANSWER IS C

Ans 4:

Class : Class 5
Both A and C are correct

Ans 5:

Class : Class 3
This is absolutely correct as y is cerebrum and x is. EllThis Is absolutely correct as y is cerebrum X is cellebellum and Z is the Medulla ✅✅✅✅

Ans 6:

Class : Class 6
cerebrum is the largest part of the brain. cerebellum is the second largest part and it controls musculo-skeleton movement

Ans 7:

Class : Class 6
Correct answer should be d because cerebellum is below cerebrum, located towards the back of the brain.

Ans 8:

Class : Class 7
B is the answer to this question but it is showing A as correct option and it is showing B as correct option in the solutions.

Ans 9:

Class : Class 4

Ans 10:

Class : Class 8
This question is correct

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Subject :NSO    Class : Class 3

Which of the following holds true for water transport?
1. It provides door to door service.
2. Perishable goods like milk, fruits and vegetables are quickly carried by it.
3. It is very useful for transporting heavy and bulky goods.
4. It is a better mode of transportation for petroleum and its products as it involves crosscontinental transfers.
5. It is very useful at the time of natural or any other calamities for saving people or supplying goods of their basic requirements immediately.

A 3 and 4
B 1, 2 and 5
C 2, 3 and 4
D 4 and 5


Ans 1:

Class : Class 6
A

Ans 2:

Class : Class 3
A

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
YES , their answer is not matching with their solution !!

Ans 2:

Class : Class 10

Ans 3:

Class : Class 10
clear objection

Ans 4:

Class : Class 4
The option selected here is wrong.

Ans 5:

Class : Class 7
Given correct answer and explanation do not match...please rectify...

Ans 6:

Class : Class 9
yes !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 7:

Class : Class 3

Ans 8:

Class : Class 7
please explain. your solution doesn't match the correct answer provided by you.

Ans 9:

Class : Class 3
ayush u are right!!!!!!!!!!!!!!!

Ans 10:

Class : Class 6

Ans 11:

Class : Class 6
The correct is NSN

Ans 12:

Class : Class 7
why arent they changing the answer

Ans 13:

Class : Class 8
The ans is not matching!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 14:

Class : Class 5

Ans 15:

Class : Class 6
The answer does not match with the solution. There should be a change in the answer.

Ans 16:

Class : Class 6
NA

Ans 17:

Class : Class 6
Although the explanation is correct, it does not match the answer

Ans 18:

Class : Class 7

Ans 19:

Class : Class 7
Pls rectify.

Ans 20:

Class : Class 9

Ans 21:

Class : Class 7
they aren't giving the answer and the solution same in some papers

Ans 22:

Class : Class 4

Ans 23:

Class : Class 4
What is this? Answer and solution are completely different, they are not matching!

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