National Science Olympiad Forum By SOF Olympiad Trainer - Page 455

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
so answer is b

Ans 2:

Class : Class 5
D

Ans 3:

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

Ans 4:

Class : Class 5
correct answer is d okkkkkkkkkkkkkkkkkkk

Ans 5:

Class : Class 3
d

Ans 6:

Class : Class 3
B

Ans 7:

Class : Class 9
D

Ans 8:

Class : Class 5
d

Ans 9:

Class : Class 5
D

Ans 10:

Class : Class 2
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

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 5

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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 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 2:

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

Ans 3:

Class : Class 9
EXPLAIN THIS PLEASEQuestion is incorrect but even after 30 (31) posts and queries no corrections...

Ans 4:

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

Ans 5:

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 6:

Class : Class 9
What 'NA' ? The question itself is incorrect

Ans 7:

Class : Class 10

Ans 8:

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

Ans 9:

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

Ans 10:

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

Ans 11:

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

Ans 12:

Class : Class 9
Please explain the answer

Ans 13:

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

Ans 14:

Class : Class 8

Ans 15:

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 16:

Class : Class 9
why no reply...

Ans 17:

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

Ans 18:

Class : Class 6

Ans 19:

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

Ans 20:

Class : Class 10

Ans 21:

Class : Class 9
What the heck is going on.

Ans 22:

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

Ans 23:

Class : Class 4

Ans 24:

Class : Class 5

Ans 25:

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

Ans 26:

Class : Class 9

Ans 27:

Class : Class 8

Ans 28:

Class : Class 6
what does NA mean?

Ans 29:

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

Ans 30:

Class : Class 9

Ans 31:

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

Ans 32:

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

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
please explain this question

Ans 2:

Class : Class 8
Can someone please explain this question?

Ans 3:

Class : Class 8
please explain this question.

Ans 4:

Class : Class 8
Time taken to utter single syllable=1/5th of a sSpeed of sound in air=330m s^-1 or 330m/sso distance to reflecting surface=1/5 * 330 as that will give the distance=66.0mSo, distance to reflecting surface is 66.0m

Ans 5:

Class : Class 8
please explain this question.

Ans 6:

Class : Class 6
answer??????????????????????????????????????????????????????

Ans 7:

Class : Class 8
Is the question wrong...? the answer should be 33.0 m as speed=2d/t

Ans 8:

Class : Class 9

Ans 9:

Class : Class 8

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9

Ans 2:

Class : Class 4

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8
The correct answer is C

Ans 6:

Class : Class 3
The answer which is given in the SOF application is wrong, because a frog has four life stages in his life stages, the correct answer must be moth because it has only three life stages in his life cycle and the parent and child do not look same,

Ans 7:

Class : Class 5
but frog dosnt have just 3 life stages it has 4 so its not the answer

Ans 8:

Class : Class 5
THE ANSWER IS D AS FROG HAS 4 STAGES IN IT'S LIFE CYCLE ,BUT DOES NOT LOOK LIKE IT'S PARENT.WHILE,MOSQUITO HAS THREE SYTAGES IN IT'S LIFE CYCLE AND DOES NOT LOOK LIKE IT'S PARENT.I MADE THE SAME MISTAKE IN THE PREVIOUS TEST

Ans 9:

Class : Class 4
correct answer is D

Ans 10:

Class : Class 5
the answer is d as the mosquito does not look like the parent , has 3 stages of life and lays eggs while frog does not look like the adult , has 4 stages of life and lays eggs .

Ans 11:

Class : Class 4
Frog has 4 stages any of the answers are not correct

Ans 12:

Class : Class 9
the answer is d

Ans 13:

Class : Class 8

Ans 14:

Class : Class 4
It is option B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer is C

Ans 2:

Class : Class 7
super easy answer. it is 'A'

Ans 3:

Class : Class 5
ans is B

Ans 4:

Class : Class 5
ANS A

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
No question?????????????????????????????

Ans 2:

Class : Class 6

Ans 3:

Class : Class 4
There is no question and when I reported that error, it just came as "invalid"

Ans 4:

Class : Class 5
what.

Ans 5:

Class : Class 7
question????????????????

Ans 6:

Class : Class 6
no question.report error please

Ans 7:

Class : Class 4

Ans 8:

Class : Class 5
where is the question???????????????????????????

Ans 9:

Class : Class 6

Ans 10:

Class : Class 5
WHERE IS THE QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!??????????????????????????????????????????????????????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!???????????????????????????

Ans 11:

Class : Class 6
Where is the question? Isn't it very vague?

Ans 12:

Class : Class 4
where is the questionnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

Ans 13:

Class : Class 5
report error

Ans 14:

Class : Class 10
question is incomplete

Ans 15:

Class : Class 5
Where is the question!?

Ans 16:

Class : Class 6

Ans 17:

Class : Class 7
they did not give the question .

Ans 18:

Class : Class 5
where is the question ??????????????????

Ans 19:

Class : Class 9
The question is there in the solution please check

Ans 20:

Class : Class 6
There is no question. What are we supposed to answer. It is incomplete

Ans 21:

Class : Class 6

Ans 22:

Class : Class 6
there is no proper question?

Ans 23:

Class : Class 5
wrong question, incompleted question!!!!!!!!!!!!!????

Ans 24:

Class : Class 9
What is the question?????????????????????????????????

Ans 25:

Class : Class 5
The question is incomplete

Ans 26:

Class : Class 5
The question is in the solution please check

Ans 27:

Class : Class 5

Ans 28:

Class : Class 9
No relevant question

Ans 29:

Class : Class 6
see the solution the question is how many kharif crops are there. there are 6.

Ans 30:

Class : Class 2

Ans 31:

Class : Class 5
There is no question!

Ans 32:

Class : Class 3
no question!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 33:

Class : Class 6
If they don't give the complete question, we all will get it wrongSOF please look into this matter

Ans 34:

Class : Class 8
question is incomplete

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