National Science Olympiad Forum By SOF Olympiad Trainer - Page 782

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
Hey Sonia, Shadow P will be formed in the morning and not R.Shadow will be formed in the opposite direction of Sun.

Ans 2:

Class : Class 3
shadow Q in picture is not right.it is near to noon.so shadow should be smaller.

Ans 3:

Class : Class 3

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
OPTION C IS THE FOOT OF A HEN.

Ans 2:

Class : Class 5
obviously option C

Ans 3:

Class : Class 5
option c

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 7
I guess b since H2 can be obtained

Ans 2:

Class : Class 8
D

Ans 3:

Class : Class 9
it should be A

Ans 4:

Class : Class 9
correct answer (A). natural gas is a clean fuel.

Ans 5:

Class : Class 9
A

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
we know that black absorbs heat but it also radiates heat

Ans 2:

Class : Class 9
black vessel will radiate more heat and cannot retain heat of water. so answer, is (B)

Ans 3:

Class : Class 9

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
harry's fastest lap time is 25.3 s the question says if he maintains his average speed of his FASTEST lap time if he completes his fastest lap in 25.3 s, he would complete 100 laps in 25.3 * 100 = approx. 2529 seconds

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
The animals in both option c and d do not have common mode of feeding.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
Squirrels are not herbivores, but omnivores.They feed on plants and animals.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 6
correct option is A because sodium, being highly reactive,reacts violently with cold water while magnesium reacts only with boiling water.Less reactive metals like zinc and iron react with steam only.Noble metals like gold and silver do not react with water.

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