National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
Thanx sir

Ans 2:

Class : Class 3
Answer: B

II and IV

Solution:
As per the equation of photosynthesis -X is carbon dioxide, Y is chlorophyll and Z is oxygen.
I is incorrect because carbon dioxide constitutes only 0.04% of atmosphere and III is incorrect because oxygen gas does not turn lime water milky.

Ans 3:

Class : Class 3
thank u kind sir

Ans 4:

Class : Class 6
thanks sir

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
B MUST BE THE ANSWER

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8
Its "b" as in parachutes all the angles formed by ropes are equal and mid rope is connected to the center of it. So here is no center and angle is not equal

Ans 4:

Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
option B

Ans 2:

Class : Class 5
option D

Ans 3:

Class : Class 4
A

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Option (D) because land cools faster than the sea.

Ans 2:

Class : Class 5
option D

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
i think this is wrong

Ans 2:

Class : Class 3
this is a wrong question (approved by NASA)

Ans 3:

Class : Class 6
yes

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
flowers turn into fruit

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
The hardest substance in our body is Enamel, so X is Enamel. The Pulp in our teethis soft and bears blood vessels and nerves, so Y is Pulp. Hence the answer is B.

Ans 2:

Class : Class 3
The hardest substance found in our body is Enamel so X is Enamel. The pulp in our teeth is soft and bears blood vessels and nerves so Y is Pulp.

Ans 3:

Class : Class 3
Pulp cavity

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