National Science Olympiad Forum By SOF Olympiad Trainer - Page 614

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 6
D

Ans 2:

Class : Class 8

Ans 3:

Class : Class 3

Ans 4:

Class : Class 6
The answer is opshen d

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 10
test_i don't know

Ans 2:

Class : Class 10
NO.for being a conductor any acid is need to be dissolved in it.

Ans 3:

Class : Class 10
No because it does not contain any ions.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
I do not understand how the answer is B.. The sun is not a planet, it is a star. And there are times when you can see venus in the sky, it is the only planet which can be spotted in the sky during the day (Rarely spotted).

Ans 2:

Class : Class 7
yaa and solution is also wrong it says all are correct

Ans 3:

Class : Class 7
the correct answer should be b because the sun is not a planet.

Ans 4:

Class : Class 5
So sorry, i didnt read the question correctly

Ans 5:

Class : Class 7
sol is A. The Sun is a huge mass of very hot gases. --- Correct.B. The Sun is the only planet that we can see in the day. --- Correct.The Sun’s light is so bright, that all other plants are not visible.C. The distance of the Sun from the Earth is about 150,000,000 km. --- Correct. Sun is 150 million km away from us.D. The Sun is important to the Earth because it provides light energy to green plants to make food. --- Correct. If there is no sunlight, plants cannot make food, they will die. There will be nothing to eat for animals and us.So, Option B is the right answer.

Ans 6:

Class : Class 6
number one sun is A STAR BOT A PLANET number two SUN IS 147.26 MILLION KM AWAY FROM EARTH NOT 150,000,000

Ans 7:

Class : Class 7
the correct answer should be b because the sun is not a planet.

Ans 8:

Class : Class 10
B

Ans 9:

Class : Class 7
sorry i did not read the question properly

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
same case here like harshita A ranjani u should give the correct question

Ans 2:

Class : Class 9
I too found it wrong.There is neither X nor Y

Ans 3:

Class : Class 5

Ans 4:

Class : Class 8
WHAT IN THE WORLD ???? FIX IT SOF

Ans 5:

Class : Class 5
Absolutely wrong

Ans 6:

Class : Class 8
exactly...there is neither X or Y !! what is wrong with this question...

Ans 7:

Class : Class 7

Ans 8:

Class : Class 6
ameya athawale from woodridge high school,aurangabadclass:7thX and Y aren't there in the question then what to answer

Ans 9:

Class : Class 10

Ans 10:

Class : Class 9
there is no X

Ans 11:

Class : Class 7
yes same here

Ans 12:

Class : Class 9
if you don't mind please check what question you are setting and please correct it if it is wrong

Ans 13:

Class : Class 7
All are from our NSO level1 workbookAnd they have not mentioned X and Y

Ans 14:

Class : Class 7
This is wrong question we should get full marks

Ans 15:

Class : Class 8
What is this X and Y. Question is totally wrong

Ans 16:

Class : Class 9
There is neither x nor y, how do you expect us to give the correct answer?

Ans 17:

Class : Class 7
This question has an error in it. I too found that there was no X and Y in this.

Ans 18:

Class : Class 5
You all are correct

Ans 19:

Class : Class 7
there are no x and y mentioned

Ans 20:

Class : Class 9
Also, if we try to report an error, they say that it is not a valid error. Please tell them to fix this immediately.

Ans 21:

Class : Class 7
The one who came up with this question doesn't have eyes !

Ans 22:

Class : Class 7
i don't know if this question is right or are my eyes playing tricks on me but i don't seem to see an X or a Y in here.

Ans 23:

Class : Class 8
question is itself wrong

Ans 24:

Class : Class 7
Yes there is no x and y in this question

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The black air causes air pollution and it makes the air dirty. Hence, the correct answer is B.

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2

Ans 2:

Class : Class 6
A

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
the answer will be C as 3 option is non-magnetic

Ans 2:

Class : Class 10
IT SHOULD BE A

Ans 3:

Class : Class 6
C

Ans 4:

Class : Class 9
But...Iron, nickel and copper r magnetic, and both steel and aluminium r non-magnetic. Then why option A is correct ans???

Ans 5:

Class : Class 8
Yes the answer is C as iron nail , nickle and steel are magnetic

Ans 6:

Class : Class 6
No, the answer is A as both steel and nickel are magnetic .

Ans 7:

Class : Class 9
In the first and second option, the magnetic materials are iron nail and steel nail respectively. In the third option all are non magnetic. In fourth option, both are magnetic materials. Therefore Ans:- A (i) and (ii)

Ans 8:

Class : Class 7
But in containers i

Ans 9:

Class : Class 8
The question is not clear

Ans 10:

Class : Class 7

Ans 11:

Class : Class 6

Ans 12:

Class : Class 8

Ans 13:

Class : Class 8
c

Ans 14:

Class : Class 4
answer is c nickel coin is also a magnetic substance but steel is a non magnetic substance

Ans 15:

Class : Class 9
copper is non magnetic

Ans 16:

Class : Class 7
But in containers I

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Subject :NSO    Class : Class 6

Read the following passage carefully.
P helps to maintain strong eyesight and healthy skin. Q is required for normal growth of bones and teeth in children. R is essential for proper functioning of muscles and nerves. S is needed for natural clotting of blood.
Identify P, Q, R and S and select the incorrect statement regarding these.

A Q is produced when the skin is exposed to sunlight.
B R is a mineral, deficiency of which causes spasms, poor digestion, anxiety and sleeplessness.
C Cod liver oil is a good source of both P and S.
D S is synthesised in our body by bacteria present in the gut.


Ans 1:

Class : Class 6
ummm intestine?

Ans 2:

Class : Class 6
Q is Vitamin D.

Ans 3:

Class : Class 9
S-vitamin K

Ans 4:

Class : Class 7
because P is vitamin a and i think S is vitamin k

Ans 5:

Class : Class 10

Ans 6:

Class : Class 9
P-vit a ,Q- vit d

Ans 7:

Class : Class 6
................?!!!!!!!!!!?

Ans 8:

Class : Class 6
what is L?

Ans 9:

Class : Class 9

Ans 10:

Class : Class 8
answer is (d)

Ans 11:

Class : Class 7
Can someone please tell me what are the nutrients?

Ans 12:

Class : Class 9
R-magnesium

Ans 13:

Class : Class 8
Umm, SOF..... No, this time nothing is wrong in this question (bcz almost all times I post for wrong question ;P) but could you explain this a little better in the solution?

Ans 14:

Class : Class 8

Ans 15:

Class : Class 7
gut means intestine and spasms means muscles suddenly contracting involuntarily.

Ans 16:

Class : Class 9
The question has some error......Can anyone find it and declare? Please!!!!

Ans 17:

Class : Class 9
What is spasms????

Ans 18:

Class : Class 7
what is gut??????

Ans 19:

Class : Class 8
P- Vitamin AQ- Vitamin DR- IDKS- Vitamin K

Ans 20:

Class : Class 6
oh vitamin A

Ans 21:

Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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