National Science Olympiad Forum By SOF Olympiad Trainer - Page 467

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
Bristlecone pine found in Sumatra

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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 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 10

Ans 2:

Class : Class 7
ANSWER IS B

Ans 3:

Class : Class 5
someone please explainnnnn

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 3
pls explain

Ans 7:

Class : Class 7
plz answer

Ans 8:

Class : Class 6
Answer supposed to be b

Ans 9:

Class : Class 10

Ans 10:

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 11:

Class : Class 7
Read the question carefully kids!

Ans 12:

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

Ans 13:

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

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Option D

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

Class : Class 7
Option D is the right answer

Ans 6:

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

Ans 7:

Class : Class 7
Answer is C

Ans 8:

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 9:

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

Ans 10:

Class : Class 8
Its Option D

Ans 11:

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 12:

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

Ans 13:

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

Ans 14:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
both b and d are correct.

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

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 7

Ans 3:

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

Ans 4:

Class : Class 5
Please correct it

Ans 5:

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 6:

Class : Class 5
How is 1 correct? Please reply

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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 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 2:

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 3:

Class : Class 5

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6
this question is wrong

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 5
Both A and C are correct

Ans 8:

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

Ans 9:

Class : Class 8
This question is correct

Ans 10:

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

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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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