National Science Olympiad Forum By SOF Olympiad Trainer - Page 338

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
This is wrong. Hydra is a Cnidarian, therefore the waste exits through its mouth.

Ans 2:

Class : Class 7
9jh

Ans 3:

Class : Class 10
B

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9
It should be B

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2: (Master Answer)

Class : Class 1

B

Human adults have 4(P) types of teeth in their dentition. These are Incisors(Q)Premolars(R)Canines(S) and molars. Incisors(Q) helps in cutting or biting food. There are 4(T) Incisors(Q) in each jaw. Premolars(R) teeth are absent in milk teeth set but there are 8(U) such teeth in permanent teeth set. Canines(S) are four in number and helps in Tearing(V) food.


Ans 3:

Class : Class 5
NA

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
Answer shud be d

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

B


Ans 2:

Class : Class 6
Answer b will be the correct answer as mosquito is not a social insect while others are termite is not useful insect and honey bee is a useful insect

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
THE ANSWER C

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
the correct answer will be c

Ans 2:

Class : Class 3
correct answer C because candles, sun, torches, diya, and bulbs are luminous objects and if we count them, there are five luminous objects.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 2
rrrrrrrrrrrrrrrrrrr

Ans 2:

Class : Class 9
B

Ans 3:

Class : Class 6
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Ans 4:

Class : Class 8
b'

Ans 5: (Master Answer)

Class : Class 1

B

Rahul and Ravi both cover different distances XOY and XY respectively at the same time. It is clear from the figure  that the distance XOY is longer than distance XY .So, the speed of Rahul must be greater than that of Ravi.


Ans 6:

Class : Class 9

Ans 7:

Class : Class 10
this was ez

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Answer is C . As you can see the electrons move from negative termina to positive terminal .the short line of battery shows that it is negative terminal and as you know that rubber is insulator of electricity so the electrons could not pass through bulb b¹.

Ans 2:

Class : Class 4

Ans 3:

Class : Class 7
Answer is d

Ans 4:

Class : Class 5
C

Ans 5:

Class : Class 3
C

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Subject :NSO    Class : Class 6

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