National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
I agree with you Anushree because the same thing is given in our science textbook also

Ans 2:

Class : Class 8
Black radiates and absorbs heat faster. Confirmation is their in almost all science tb and google too. So answer must be A. WHY NOT A

Ans 3:

Class : Class 7
WHY NOT A

Ans 4:

Class : Class 8
It should be A

Ans 5:

Class : Class 4

Ans 6: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 7:

Class : Class 8

Ans 8:

Class : Class 7
B IS GIVEN HERE IN NSO TEST.

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8
I think that the answer is A.Could someone explain why it is B?

Ans 11:

Class : Class 8
How

Ans 12:

Class : Class 9

Ans 13:

Class : Class 8
how is the answerB. according to my science text book ( New science ahead class 7, pg.47), Black not only absorbs heat fast,but also radiates heat fast and cools down faster, accordingto that,answermust be A.

Ans 14:

Class : Class 8
It's A right?

Ans 15:

Class : Class 8
why not A

Ans 16:

Class : Class 8
Why

Ans 17:

Class : Class 9

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Subject :NSO    Class : Class 3

Ans 1:

Class :
The pencil looks bent because of the phenomenon called Refraction. When light enters water it cannot move as fast as it does in the air. As the light enters the water on an angle it does not follow its original path, and this makes the image look bend.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
the answer is c according to me as convex mirror always forms diminished , erect and virtual image

Ans 2:

Class : Class 8
Ans a

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
they are asking what is incorrect

Ans 2:

Class : Class 8
as u are correct that pumule form the shoot of plant but in some cases it is future root like in some plants radicle decay due to some disease so pumule grows as root . So here right option will be "c"

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
Maharajganj

Ans 2:

Class :
Answer is option C. Both Radio and Television can be used to get updates because they support audio.

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Subject :NSO    Class : Class 3

Ans 1:

Class :
Tailor bird. It makes its nest with the leaves sewn to gether.

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Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1 : To maintain soil fertility, it is essential to prevent overgrazing and deforestation.
Statement 2 : Roots of plants grasp soil well and prevent removal of top soil by air, water, etc.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.


Please see to it that you may have typed the word "fertility" instead on the word "erosion". Soil grasping has nothing to do with soil fertility.

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The correct answer is crop rotation(C).

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 7
please explain the answer of this question

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
very hard -ans A

Ans 2:

Class : Class 4
tricky

Ans 3:

Class : Class 10
K.V.S. Srivanshitha from meridian school class:class 4tricy ans- C

Ans 4:

Class : Class 6
Tricky

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