National Science Olympiad Forum By SOF Olympiad Trainer - Page 610

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
hinge joint

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
it is test tube three as it depends on the reactivity series.only in test tube 3 zinc displaces copper and in the rest the metals cant displace the alternate metal as the metal in the salt solution is more reactive than the other metal

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is D.

Ans 2:

Class : Class 3
you can get confused very very easily

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Subject :NSO    Class : Class 10

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
Yes, Z is the right option.

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Class : Class 5
how is it possible

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Class : Class 4
D is the correct answer

Ans 5:

Class : Class 7
Please give answer

Ans 6:

Class : Class 4
D is the right answer.

Ans 7:

Class : Class 5
Answer is D because you can see that the Q decreases and P increases in Z so M was introduced in Z.

Ans 8:

Class : Class 5
Answer is D because you can see that the Q decreases and P increases in Z so M was introduced in Z.And the food chain should be P then M and then Q and the arrows show who eats whom.For example,the arrow pointing P back pointing to M tells P eats M.

Ans 9:

Class : Class 6
Yes👍 of ans2

Ans 10:

Class : Class 6

Ans 11:

Class : Class 4
D is the correct answer

Ans 12:

Class : Class 8
The correct answer is D

Ans 13:

Class : Class 3
Tricky question🧐🤨🤔

Ans 14:

Class : Class 7

Ans 15:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
the answer is wrong. The answer should be yolk because i have read that there are only three parts in a egg. Shell, albumen and yolk. There is no part named germinal disc. Pls correct the answer

Ans 2:

Class : Class 6
There is a white dot in yolk but i thought it was a yolk only but its grerminal disc

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Class : Class 5
Answer is B because something is on the yolk so it is not supposed to be A-Yolk,it is supposed to be B-Germinal Disc.

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Class : Class 3

Ans 5:

Class : Class 5
The correct answer is option B. Beacause, the germinal disc is surrounded by the yolk.

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Class : Class 4
I don't even understand what it is though. :( :)

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Class : Class 5

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Class : Class 7
What?I don't know this.Niether was it in the sipnoses.So,if you answered it correctly,how did you know?Pls answer

Ans 9:

Class : Class 5
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Ans 10:

Class : Class 4

Ans 11:

Class : Class 5
is germinal disc the embryo?

Ans 12:

Class : Class 9

Ans 13:

Class : Class 4

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 7
The green material is a mixture of copper hydroxide Cu(OH)2 and copper carbonate Cu(OH)2(This is also copy pasted from your solution. Please explain it)

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
D

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
please consider the frictional force at the point where the contact is made. See the motion of the wheel carefully. it applies force in the direction of Q. therefore the correct answer is S (D)

Ans 2:

Class : Class 8
excuse me, your solution is right but your question is wrong.

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Class : Class 10
SOF your solution is correct but your answer is wrong and do you people even correct the questions

Ans 4:

Class : Class 8

Ans 5:

Class : Class 10
Listen, the motion of the tyre is given, not car. Friction is helping it to move there. therefore answer = D

Ans 6:

Class : Class 10
Let me explain all your doubts will be clear. For example when a car is stuck in the mud then when the driver pushes the accelerator the car wheels throw mud backward that means the car's wheels are applying force backward when it wants to go front and if we see definition then we can see that direction of friction is opposite to direction of force applied not direction of motion so here the force applied is backwards so the friction will be with the direction of motion and hence answer is Option D (S)

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Class : Class 8

Ans 8:

Class : Class 8
the direction of the frictional force is always to the direction of motion that is why the answer should be (b)

Ans 9:

Class : Class 8
the direction of the frictional force is always to the direction of motion that is why the answer should be (b)

Ans 10:

Class : Class 4
sarthak gupta i agree with u

Ans 11:

Class : Class 6

Ans 12:

Class : Class 8
The Direction of motion Explained in the Solution is wrong Kindly assist with the correct answer.

Ans 13:

Class : Class 6

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