National Science Olympiad Forum By SOF Olympiad Trainer - Page 477

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
sound actually travels faster than light

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
idiotsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Ans 2:

Class : Class 5
c is also correct

Ans 3:

Class : Class 6
you are all big fools [who did d as answer]

Ans 4:

Class : Class 6
c is also correct

Ans 5:

Class : Class 6

Ans 6:

Class : Class 9
answer is D

Ans 7:

Class : Class 7
I think B is also correct as it is the beak of Kingfisher kind of bird

Ans 8:

Class : Class 6
Yes

Ans 9:

Class : Class 6
Confused between b and d

Ans 10:

Class : Class 8
I think b is also correct

Ans 11:

Class : Class 8
I also think so..

Ans 12:

Class : Class 8

Ans 13:

Class : Class 6
You all who didn't wrote b are big big idiot

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is B because burning paper to form ash is a chemical change. We can't get paper from ash.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Since both these plants have ovules, they have to be developed from seeds. So statement (i) is correct

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
Flower 1 is a bisexual flower because the anthers are present at the side of the stigma. So statement (ii) is incorrect

Ans 4:

Class : Class 7
In flower Y style and stigma are missing, how can fertilization take place then?

Ans 5:

Class : Class 4
Ans. is b

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8
how is it incorrect

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Subject :NSO    Class : Class 7

Read the given passage.
The flowers of X plant contain either stamen or pistil while flowers of plant Y contain both stamens as well as pistil.
Select the correct statement regarding X and Y.

A In X, seed setting is assured even in the absence of pollinating agent.
B X could be mustard while Y could be papaya.
C In normal conditions, all the plants of Y changes into seeds after fertilisation.
D The flowers of X prevents cross pollination.


Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 10

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is B

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
The correct answer is B

Ans 2:

Class : Class 3
B

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Subject :NSO    Class : Class 7

Read the given paragraph with few blanks. __(i)__ body of birds reduces resistance offered by wind. Their __(ii)__ are modified into wings which help them in flight. Birds have __(iii)__ bones which make their body light. Birds are __(iv)__ and maintain constant body temperature. __(v)__ are attached to their lungs which serve as reservoirs of air. Birds maintain equilibrium in flight due to well developed __(vi)__ of brain.
Select the option that correctly fills any 3 of these blanks.

A(i) Spindle shaped, (ii) Hindlimbs, (vi) Cerebrum
B(ii) Forelimbs, (iv) Homeothermic, (vi) Cerebellum
C(i) Radially symmetrical, (iii) Pneumatic, (v) Air sacs
D(iv) Poikilothermic, (v) Air sacs, (vi) Cerebrum


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