National Science Olympiad Forum By SOF Olympiad Trainer - Page 466

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Answer is A Because the question is "ABOVE THE AUDIBLE RANGE, not within"

Ans 2:

Class : Class 9
1000

Ans 3:

Class : Class 9
correct answer should be c

Ans 4:

Class : Class 9
kHz = 1000Hz

Ans 5:

Class : Class 9
how many kHz = Hz

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6
NONE OF THE OPTIONS ARE CORRECT

Ans 4:

Class : Class 7
D is the correct answer

Ans 5:

Class : Class 8
Option D is the correct answer

Ans 6:

Class : Class 5

Ans 7:

Class : Class 6

Ans 8:

Class : Class 5
Correct answer is D not B!

Ans 9:

Class : Class 5
I tried reporting an error but it did not work. Please try as well

Ans 10:

Class : Class 8
no option is correct

Ans 11:

Class : Class 7

Ans 12:

Class : Class 5
no option is corect,it is d with the diseases interchanged

Ans 13:

Class : Class 9
Pls explain

Ans 14:

Class : Class 8
None of the options are correct

Ans 15:

Class : Class 3
none of the options are correct

Ans 16:

Class : Class 8
the correct answer will be both option b and d

Ans 17:

Class : Class 8
correct answer should be D

Ans 18:

Class : Class 6
none of the options are correct.

Ans 19:

Class : Class 6
D is correct

Ans 20:

Class : Class 3
D is the correct answer

Ans 21:

Class : Class 6
correct answer is D

Ans 22:

Class : Class 6
I DISCUSSED A LOT .SEARCHED ON GOOGLE. MALARIA IS A NON COMMUNICABLE DISEASE.PLEASE explain IT

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 3
ok

Ans 2:

Class : Class 5
what is the framework of a bone?

Ans 3:

Class : Class 4
its a

Ans 4:

Class : Class 5

Ans 5:

Class : Class 5
its c

Ans 6:

Class : Class 5
It's D option

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
when we put some water in a soil surface, we cold see small bubbles on the soil surface.

Ans 2:

Class : Class 3
If we in a soil sample, we would see small bubbles on the soil sample.

Ans 3:

Class : Class 3
D

Ans 4:

Class : Class 4

Ans 5:

Class : Class 3
D)

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
c

Ans 2:

Class : Class 3
Hitting the cricket ball with a bat to make a run.

Ans 3:

Class : Class 3
c

Ans 4:

Class : Class 4

Ans 5:

Class : Class 4
c as in a b d force pull is used

Ans 6:

Class : Class 3

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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 4

Ans 1:

Class : Class 5
(A) cannot be the right answer as once the water vaporizes, there is no scope for sedimentation. (B) cannot be the right answer as once the mixture is filtered, the sand shall be collected on the filter paper while the clean water shall be collected in a beaker.Evaporation is not required. The answer is (C) because sand is heavier than water and shall settle down at the bottom of the beaker.This process is called sedimentation.Subsequently,the clear water from the top can be decanted out. (D) cannot be the right answer as once decantation is done, the clear filtrate shall be left over and filtration is not required.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
It is correct as vaporisation increases with increased wind speed

Ans 2:

Class : Class 8

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