National Science Olympiad Forum By SOF Olympiad Trainer - Page 382

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9

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Class : Class 3

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Class : Class 8
formation of clouds is irreversible

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Class : Class 7

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Class : Class 9
Clouds when heavier fall as rain(Liquid). This rain water when runs off in the water bodies and gets heated under sun will again evaporate to the sky to form clouds again. So it is a reversible change. Hope its clear,.

Ans 6:

Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 9
b is answer

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Class : Class 8
During OP, distance travelled is maximum for a small period of time. Hence answer is B

Ans 4:

Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

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Class : Class 5
It is slightly confusing :-(

Ans 3:

Class : Class 7
Yes it was a little confusing

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Class : Class 5
NO IT WAS

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
A is opaque, B is translucent and C is transparent.

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Class : Class 7

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Class : Class 8

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Class : Class 5

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Class : Class 5
B.Because it allows us to see only a hazy picture of the boy's face.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
bro a crying baby makes way more noise pollution haha

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Class : Class 5

Ans 3:

Class : Class 7
C is the answer to this question

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Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 5
yes

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Class : Class 5
sublimation as it is the process of solid changing to gas directly..so c is the correct answer..

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 4
Wrong answer provided.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 7

Ans 3:

Class : Class 10
By mistake I wrote the wrong answer because I did not seem the question that it was return metal ball

Ans 4:

Class : Class 9

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