National Science Olympiad Forum By SOF Olympiad Trainer - Page 608

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
the answer can even be 'B' as semi-circle is there ,made by square

Ans 2:

Class : Class 5
why semicircle not be counted

Ans 3:

Class : Class 8
How are we supposed to know it’s a rectangle when hidden by the circle ,bonne nuit

Ans 4:

Class : Class 4
5

Ans 5:

Class : Class 8
b as there is a semi-circle

Ans 6:

Class : Class 7
Can you tell the answer of this question

Ans 7:

Class : Class 5
its d

Ans 8:

Class : Class 6
all listen it should be 5 as i think because the rectangle is dividing the circle into two halves which is forminig a semi circle and if sof has to 4 which means that it should be a whole shape like circle triangle etc.so if it is wholes shape SOF is right or elseNiteen Jit Sahu and all others who say semi circle are right

Ans 9:

Class : Class 9
The answer is D) 4

Ans 10:

Class : Class 8
semicircle is there but made by square so the answer is 4

Ans 11:

Class : Class 8
How 5? answer is 4The shapes are:circle,triangle,rectangle and square

Ans 12:

Class : Class 7
5 is the answer because there is even semi circle there with rectangle,square and triangle.

Ans 13:

Class : Class 4
4 IS THE CORRECT ANSWER

Ans 14:

Class : Class 4
55555555555555555555555555555555555555555 is the ans

Ans 15:

Class : Class 6

Ans 16:

Class : Class 7
There is no semicircle.Answer is 4.

Ans 17:

Class : Class 7
SEMICIRCLE5B

Ans 18:

Class : Class 5
5

Ans 19:

Class : Class 3
ayurda 4 d 4

Ans 20:

Class : Class 5

Ans 21:

Class : Class 8
IT SHOULD BE 5 AS THERE IS SQUARE TRIANGLE SEMECIRCLE RECTANGLE AND DIAMOND

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9
The correct answer is d as friction acts opposite to the direction of the applied force

Ans 3:

Class : Class 7
Answer is d

Ans 4:

Class : Class 8
I think that option "D" is the correct answer as friction is always opposite to direction of motion of the object

Ans 5:

Class : Class 8
How can the direction of friction be towards east? It should always act in the direction opposite to that of the direction of the moving body, i.e., friction should act towards the west irrespective of whether the vehicle is accelerating or retarding. So the correct answer should be D!

Ans 6:

Class : Class 10
see guys, i think u all are mistaken. We dont consider in what direction the car is going, but in which direction the wheel is turning. for the car to go forwards, the wheel must roll clockwise. so for the car to go east, wheel must roll in the clockwise direction. Now consider a very small part of the wheel which is touching the ground. to wheel to roll in clockwise direction , that small part must slide backward, and that must continously happen in order for wheel to turn clockwise and car to go in east direction. And u know, friction is b/w the surface in contact, i.e the rolling part of the wheel, not with the car. so friction should oppose the backward-going part of the wheel, and thus in the ame direction with the motion of the car. if friction were to be in west, the car would never go in east direction, because the wheel would'nt have any force to oppose, to make it go in that direction, and thus the car would never be able to go towards the east direction!

Ans 7:

Class : Class 9
I'm confused about the same thing...friction opposes relative motion, so it will obviously be towards west??

Ans 8:

Class : Class 9
I ALSO THINK THE ANSWER IS D

Ans 9:

Class : Class 8
D

Ans 10:

Class : Class 8
Yes answer is D

Ans 11:

Class : Class 10

Ans 12:

Class : Class 8

Ans 13:

Class : Class 8
the answer is D but is given wrong in this question .

Ans 14:

Class : Class 8
Answer is D

Ans 15:

Class : Class 8
the answer has to be d because friction always oppose the relative motion of an object no matter if it accelerates or not.

Ans 16:

Class : Class 8
The answer should be D

Ans 17:

Class : Class 9
The answer is A.

Ans 18:

Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
it is wrong

Ans 2:

Class : Class 4
c

Ans 3:

Class : Class 7
C

Ans 4:

Class : Class 5
25341

Ans 5:

Class : Class 7
C because 25341 spells stick

Ans 6:

Class : Class 5
25341

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
YOU! An admin from Revisewise, you don't even own up to SOF's mistake.Da questions do not show properly and you think I'm responsible!

Ans 2:

Class : Class 2
DDD

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
ans was b and i wrote b

Ans 5:

Class : Class 5
d

Ans 6:

Class : Class 9
D

Ans 7:

Class : Class 8
d is the right answer

Ans 8:

Class : Class 4
Explain PleaseI need the explaination

Ans 9:

Class : Class 5
d

Ans 10: (Master Answer)

Class : Class 1

Ans 11:

Class : Class 5

Ans 12:

Class : Class 5
D is the right ansExplanation- LOW VITAMIN A - NIGHT BLINDNESSLOW V. B - BERI BERI

Ans 13:

Class : Class 4
B is the answer

Ans 14:

Class : Class 8

Ans 15:

Class : Class 5
what they've went and done is put exxxtra optionsss! Real irratating

Ans 16:

Class : Class 4
CAN SOMEONE EXPAIN?

Ans 17:

Class : Class 4

Ans 18:

Class : Class 4

Ans 19:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
option b

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5
My head is not working and you all are crowding at a simple question! The answer of this question is always bbbbbbbbbbbbbbbbbbbbbb. Are you all are a small kindergarten kids? I think yes. You all are a kids . I think you all will in class 9 or 10. I am sure.

Ans 4:

Class : Class 7
B

Ans 5:

Class : Class 8
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8
How a Vineet?

Ans 8:

Class : Class 7

Ans 9:

Class : Class 3

Ans 10:

Class : Class 4
Olympiad trainer is saying wrong it would be B bcoz it is 18....

Ans 11:

Class : Class 6

Ans 12:

Class : Class 1
A

Ans 13:

Class : Class 4
The answer should be option C

Ans 14:

Class : Class 4
ans b is the answer......

Ans 15:

Class : Class 7
d

Ans 16:

Class : Class 5
Seen you all later.

Ans 17:

Class : Class 4

Ans 18:

Class : Class 4
I think it is c.

Ans 19:

Class : Class 7

Ans 20:

Class : Class 5
It's answer should be B option

Ans 21:

Class : Class 4
Answer has to be option B

Ans 22:

Class : Class 4

Ans 23:

Class : Class 6
SOF Trainer Is Saying Option D But I Think It Is Option C

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
a is answer

Ans 2:

Class : Class 8

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 1
THE ANSWER SHOULD BE C !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Class : Class 7
would'nt the answer be c ?because kangaroo rats consume water in very limited wayand slow their metablic rate.

Ans 3:

Class : Class 8

Ans 4:

Class : Class 3
no, I changed my answer there is a misconception that camels drink less water.A camel's water intake varies according to his environment, his exertion level, and the amount of fat in his hump. A thirsty camel can drink more than 30 gallons of water in less than 15 minutes. 1.1 A typical camel can drink 200 liters (53 gallons) of water in three minutes. they drink a lot of water but can also go a long time without drinking water...hope it helps

Ans 5:

Class : Class 4
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 6:

Class : Class 3
I have one thing to say the answer is C

Ans 7:

Class : Class 8
I think the answer should be c .

Ans 8:

Class : Class 7
c c c c c c c c c c c c c c c c c c c cc c c c c c c c c c c c c it should be c

Ans 9:

Class : Class 3
ANS MUST BE Opt C

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
It should be option A

Ans 2:

Class : Class 1
NA

Ans 3:

Class : Class 7
it is wrong because north east India receives less rainfall as rajasthan is in north east india

Ans 4:

Class : Class 1

Ans 5:

Class : Class 7

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Cholera and typhoid

Ans 2:

Class : Class 9
Cholera and typhoid

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