National Science Olympiad Forum By SOF Olympiad Trainer - Page 431

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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 7
D

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 4
D

Ans 4:

Class : Class 5
correct answer is d okkkkkkkkkkkkkkkkkkk

Ans 5:

Class : Class 3
B

Ans 6:

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

Ans 7:

Class : Class 4
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 4

Ans 2:

Class : Class 3

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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
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 2:

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

Ans 3:

Class : Class 8

Ans 4:

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

Ans 5:

Class : Class 4

Ans 6:

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

Ans 7:

Class : Class 9
What the heck is going on.

Ans 8:

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

Ans 9:

Class : Class 9

Ans 10:

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

Ans 11:

Class : Class 8

Ans 12:

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

Ans 13:

Class : Class 10

Ans 14:

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

Ans 15:

Class : Class 9
Please explain the answer

Ans 16:

Class : Class 6

Ans 17:

Class : Class 8
PLEASE GIVE THE ANSWER ALONG WITH EXPLANTION

Ans 18:

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

Ans 19:

Class : Class 5

Ans 20:

Class : Class 6
what does NA mean?

Ans 21:

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

Ans 22:

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

Ans 23:

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

Ans 24:

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

Ans 25:

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

Ans 26:

Class : Class 9
why no reply...

Ans 27:

Class : Class 10

Ans 28:

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

Ans 29:

Class : Class 9

Ans 30:

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

Ans 31:

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 32:

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

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
please explain this question.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9

Ans 4:

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

Ans 5:

Class : Class 8
Can someone please explain this question?

Ans 6:

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

Ans 7:

Class : Class 8
please explain this question.

Ans 8:

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 9:

Class : Class 9
please explain this question

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6

Ans 2:

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 3:

Class : Class 5

Ans 4:

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 5:

Class : Class 4

Ans 6:

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

Ans 7:

Class : Class 7

Ans 8:

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 9:

Class : Class 4
It is option B

Ans 10:

Class : Class 8
The correct answer is C

Ans 11:

Class : Class 5

Ans 12:

Class : Class 4
correct answer is D

Ans 13:

Class : Class 6
the answer is d

Ans 14:

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

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 5
ANS A

Ans 3:

Class : Class 5
ans is B

Ans 4:

Class : Class 5
Answer is C

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