National Science Olympiad Forum By SOF Olympiad Trainer - Page 307

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

D

Dispersal of seed is carried out by wind, water, animals and by explosion. From the given figure it can be inferred that seeds of plants X are dispersed through explosion, e.g., Balsam and pea. Seeds of plant Y are dispersed by wind, e.g., Dandelion and Hiptage while seeds of plant Z are dispersed by animal, e.g., Xanthium, Urena.


Ans 2:

Class : Class 5
thans for explaining

Ans 3:

Class : Class 5
Dispersal of seed is carried out by wind, water, animals and by explosion. From the given figure it can be inferred that seeds of plants X are dispersed through explosion, e.g., balsam and pea. Seeds of plant Y are dispersed by wind, e.g., dandelion and Hiptage while seeds of plant Z are dispersed by animal, e.g., Xanthium, Urena.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5
m

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
Both A and B is correct.

Ans 2:

Class : Class 8
Answer is B

Ans 3:

Class : Class 8
Only B is the answer because in picture A it show that K eats N which is not possible.

Ans 4:

Class : Class 9
both A and B is correcty

Ans 5:

Class : Class 9
both A and B is correcty

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
why does SOF developers say their answer master answer

Ans 2: (Master Answer)

Class : Class 1

B

Air contains oxygen, which helps in burning. To extinguish a fire it is necessary to cut off the supply of oxygen (air).


Ans 3:

Class : Class 7
master answer is wrong it is (A)

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
A

Ans 2: (Master Answer)

Class : Class 1

A


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
A

Ans 2:

Class : Class 7
The correct answer is option A not any other option.

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

D

A-Crow, B-mynah and C-sparrow have three toes pointing forward and one toe pointing backward in each foot whereas D-woodpecker has two toes pointing forward and two toes pointing backward in each foot.


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