National Science Olympiad Forum By SOF Olympiad Trainer - Page 330

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

D

Reusing old cans, bottles and newspapers means you won’t be buying new ones from market. This will help to conserve natural resources that are used for making new cans, bottles and newspapers. So, this will help to control environmental pollution.


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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Testes

Ans 2:

Class : Class 8
Testes which is the primary sex organ in male reproductive system, produces the male gamete sperm as well as male hormone Testosterone

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
All your pictures are blurry and dull. Could you please try to make it colourful and visible? Thank you.

Ans 2:

Class : Class 5
correct answer isd

Ans 3:

Class : Class 7
D is the answer to this question

Ans 4:

Class : Class 1
I would have known the answer if there was a clearer pic

Ans 5: (Master Answer)

Class : Class 1

D

Ploughing the field(d)→Adding fertilisers to the field(b)→Sowing the seeds(e)→Irrigation of crops(a)→Spraying pesticides(c)


Ans 6:

Class : Class 9
How is Fig. (b) Adding fertilisers to field? https://www.sofolympiadtrainer.com/forum/user/467395 Pls. reply

Ans 7:

Class : Class 8
D

Ans 8:

Class : Class 6
options given are wrong

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Answer is C .Because Vitamin D is formed in our body due to exposure to sunlight through colestrol so option A is right .deficiency of vitamin D and calcium causes rickets .calcium is present in milk but not sometimes in its products .so the correct answer is C

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The answer is (b) According to Kepler's second law, the angular momentum of the planet is constant. The angular momentum of the planet does not vary, i.e. the aerial velocity of the planet remains constant.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
the answer is D the server is right

Ans 2:

Class : Class 7
the answer is d

Ans 3:

Class : Class 6
answer is A .

Ans 4:

Class : Class 7
A

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 2:

Class : Class 4
the answer is : b 2,4,8,14,28

Ans 3:

Class : Class 6
14 X 7 = 98 not 56 see the solution then put answer on the forum .

Ans 4:

Class : Class 5
B

Ans 5:

Class : Class 5
b is the answer

Ans 6:

Class : Class 7
Isn't this an IMO question????????!!!!!!!!!!!!!!!!!!!!!!!

Ans 7:

Class : Class 7
answer is B

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

C

Animals X and Y shown in the figure are of shark and rat respectively. Shark is a carnivore and rat is an omnivore. Similarly in option C clouded leopard is a carnivore and skunk is an omnivore. 


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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
correct options are not given

Ans 2:

Class : Class 8
I tried doing it, nothing came out! Hell!!

Ans 3:

Class : Class 9
NA

Ans 4:

Class : Class 7
There are 2 parts in this question which are not at all inter-related.The average speed (2nd part) question is the incomplete question of Q.10

Ans 5:

Class : Class 7

Ans 6:

Class : Class 10
How is the first part of the question related to the second part?

Ans 7:

Class : Class 9
The question has a bug

Ans 8:

Class : Class 8
They added question no 10 in this question... Please look into this Sof

Ans 9:

Class : Class 9
exactly!!!its bugged

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
the correct answer is : B

Ans 2:

Class : Class 7
CORRECT ANS IS A

Ans 3:

Class : Class 7
Pls explain!

Ans 4:

Class : Class 9
The answer is B .

Ans 5:

Class : Class 5
The correct answer is D because when sun heats the land air rises up from the land so the option 4 is also correct , hence D is correct option

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