National Science Olympiad Forum By SOF Olympiad Trainer - Page 431

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
But gallium is in solid state at room temperature (20oC)

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
Completely agree. ????

Ans 3:

Class : Class 9
it says that b is correct and then in soln. it says b is wrong

Ans 4:

Class : Class 8
in the solution it says that option b is wrong then it says that that the correct option is option b please explain

Ans 5:

Class : Class 9

Ans 6:

Class : Class 8
Yes. Why does it say that?

Ans 7:

Class : Class 10
why does it say b is wrong(and c is correct) in the solution and that b is the correct answer?Isn't it C?

Ans 8:

Class : Class 8
In the explanation it is given that option b is wrong. Then how does the OPTION B become the right one ?

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8

Ans 11:

Class : Class 8
In solution it is written B is incorrect then HOW THE OPTION 'B' IS COREECT????

Ans 12:

Class : Class 10

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
speed =frequency*wavelength so frequency is inversely proportional to wavelength so if frequency changes the wavelength will also change

Ans 2:

Class : Class 10

Ans 3:

Class : Class 8
both 1 and 3 should be answers

Ans 4:

Class : Class 8
It should be option c

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 6
d!!!!!!!!!!!!!!!!!!!!!!!!!!!!!👍🏼

Ans 3:

Class : Class 4
d

Ans 4:

Class : Class 3
B

Ans 5:

Class : Class 5
correct answer is d okkkkkkkkkkkkkkkkkkk

Ans 6:

Class : Class 7
D

Ans 7:

Class : Class 5
D

Ans 8:

Class : Class 4
so answer is b

Ans 9:

Class : Class 4
handspan and footspan are a unit measuring ok

Ans 10:

Class : Class 3
d

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 8

Refer to the given flow chart. Identify hormones X and Y and select the correct option regarding them.


A Glands secreting hormone Y are located on the posterior surface of glands secreting hormone X.
B Myxoedema is caused by hyposecretion of a hormone secreted by gland that also secretes hormone Y.
C Both hormones X and Y are secreted by same endocrine gland but are antagonistic to each other in functioning.
D Hyposecretion of hormone Y leads to osteoporosis as more calcium is drawn from bones to raise blood calcium level.


Ans 1:

Class : Class 9
why no reply...

Ans 2:

Class : Class 5

Ans 3:

Class : Class 8
NA means no answer but what we had to do with it

Ans 4:

Class : Class 8
Woah how are the marks out of 60 then. People have already attempted this paper in the given year. This means an error in the paper was there that wasn't rectified...

Ans 5:

Class : Class 9
I understood that when I looked at the question itselfThe arrows are wrongly labelled

Ans 6:

Class : Class 8
EXPLAIN THIS PLEASEQuestion is incorrect but even after 30 (31) posts and queries no corrections...

Ans 7:

Class : Class 9
Please explain what NA is... I don't understand

Ans 8:

Class : Class 9
NA meant no answer is correct and we had to leave this one empty

Ans 9:

Class : Class 9

Ans 10:

Class : Class 8
Exactly.What does NA mean ??

Ans 11:

Class : Class 9
None of the given options are correct...

Ans 12:

Class : Class 8
NA? what is the explanation of the answer

Ans 13:

Class : Class 9
What the heck is going on.

Ans 14:

Class : Class 8

Ans 15:

Class : Class 8
Yes , NA means 'no answer' So , since there is no such option , anything we pick would be incorrect.

Ans 16:

Class : Class 9
Please explain the answer

Ans 17:

Class : Class 9

Ans 18:

Class : Class 4

Ans 19:

Class : Class 10
NA means 'No Answer'.But the guidelines clearly state 'Mark all questions.'How is this fair?

Ans 20:

Class : Class 6

Ans 21:

Class : Class 8
Please give the answer to this Question.

Ans 22:

Class : Class 8
Arrows are marked wrongly...I dont think these mistakes will ever get rectified considering that people have been writing in this forum, for the past two years, for this question. please look into this sof🙂

Ans 23:

Class : Class 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 24:

Class : Class 10

Ans 25:

Class : Class 8

Ans 26:

Class : Class 9
"NA"?.please explain the answer

Ans 27:

Class : Class 8
What do you mean by 'NA'?

Ans 28:

Class : Class 9
The correct answer will be(a)

Ans 29:

Class : Class 6
if there is no answer,then why was it considered wrong?it is not fair.

Ans 30:

Class : Class 10

Ans 31:

Class : Class 8
What 'NA' ? The question itself is incorrect

Ans 32:

Class : Class 6
what does NA mean?

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Subject :NSO    Class : Class 3

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