National Science Olympiad Forum By SOF Olympiad Trainer - Page 611

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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 6
Yes, Z is the right option.

Ans 3:

Class : Class 4
D is the correct answer

Ans 4:

Class : Class 7
Please give answer

Ans 5:

Class : Class 5
how is it possible

Ans 6:

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 7:

Class : Class 6

Ans 8:

Class : Class 4
D is the correct answer

Ans 9:

Class : Class 3
Tricky question🧐🤨🤔

Ans 10:

Class : Class 8
The correct answer is D

Ans 11:

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 12:

Class : Class 6
Yes👍 of ans2

Ans 13:

Class : Class 7

Ans 14:

Class : Class 4
D is the right answer.

Ans 15:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Class : Class 4

Ans 3:

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 4:

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

Ans 5:

Class : Class 9

Ans 6:

Class : Class 3

Ans 7:

Class : Class 5
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Ans 8:

Class : Class 5

Ans 9:

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.

Ans 10:

Class : Class 5
is germinal disc the embryo?

Ans 11:

Class : Class 4

Ans 12:

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

Ans 13:

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

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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 4
sarthak gupta i agree with u

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

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 6:

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

Ans 7:

Class : Class 6

Ans 8:

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)

Ans 9:

Class : Class 6

Ans 10:

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

Ans 11:

Class : Class 8

Ans 12:

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 13:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
Kicking a football while playing is correct. We can't run on wet floor. We will fall down. That's why in school and malls they use boards to alert that the floor is wet and thus no one should run on it.

Ans 2:

Class : Class 7
B

Ans 3:

Class : Class 8
We are running on wet floor so it is obvious that we'll slip. Admin from Revisewise pls. explain this answer. Please explain.

Ans 4:

Class : Class 7
Answer is C because when friction is applied we will not slip if we run so it is an advantage.

Ans 5:

Class : Class 5

Ans 6:

Class : Class 9
c

Ans 7:

Class : Class 7
B

Ans 8:

Class : Class 7
B

Ans 9:

Class : Class 8
How is running on floor an advantage? Won't we fall?

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
I think there can be one more possibility of taking out the odd one out that is all other numbers except for 143 which was option a are divisible by 7 well as 143 is not divisible by 7

Ans 2: (Master Answer)

Class : Class 1
Yes.

Ans 3:

Class : Class 9
can you give me the solution for this answerregards nikshay

Ans 4:

Class : Class 8
please give me solution of this question

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 3
water

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is C because Venus does not freeze at night so mercury freezes at night.Jupiter is wider than 11 earths side by side.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6
ans is c.

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6

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