National Science Olympiad Forum By SOF Olympiad Trainer - Page 845

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B is the answer

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Class : Class 7
Option a) Astronomer

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Subject :NSO    Class : Class 3

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Class : Class 7
Option b) The Skin

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Class : Class 7
(A

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Subject :NSO    Class : Class 4

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Class : Class 7
Mars

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Class : Class 4
B. Frictional Force

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Class : Class 7
b . We use friction in three types - Static friction , Sliding friction , Rolling friction. Here we are using sliding friction .

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Class : Class 7
Mars

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Class : Class 4
B.Frictional Force

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Class : Class 7
B] Frictional force

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Subject :NSO    Class : Class 4

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Class : Class 7
a. Because woollen clothes trap air and make us feel warm.

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Class : Class 8
A Hot , Summer

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Class : Class 4
A.Hot,Summer

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Subject :NSO    Class : Class 4

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Class : Class 7
calcium

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Class : Class 4
2.Drying

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Class : Class 7
2. Because dehydration means to take water from it .So it will be drying.

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Class : Class 4
2. Drying

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Subject :NSO    Class : Class 4

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Class : Class 4
C. Premolar--Knife

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Class : Class 8
D Molar -- Grinder

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Class : Class 7
c. premolar crushes the food

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