National Science Olympiad Forum By SOF Olympiad Trainer - Page 664

User Forum

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
Hi, the statement 2 is true but just tells about the type type combustion to which the reaction given in statement belong. it does not tell about actual cause of burning of phosphorus in air at room temperature. the reason for statement 1 is that phosphorus is a highly reactive element that's why burns in air at room temperature.

Ans 2:

Class : Class 5

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8

Ans 5:

Class : Class 9

Ans 6:

Class : Class 9

Ans 7:

Class : Class 8
Actually, the solution is opposite to the correct answer

Ans 8:

Class : Class 8
the soultion is wrong beacuse the literal defination of spontaneous combustion tells us that it happens at room temprature without application of heat by external source

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9
Supposed to be only ABecause mustard is a non leguminous plantEven it can be rotated with soyabean

Ans 3:

Class : Class 8
Think in the way of leguminous crops

Ans 4:

Class : Class 8
Why so? In both the cases soybean is present.

Ans 5:

Class : Class 8
The protein requirement of mustard is fulfilled by the ribozome present in root nodules of soyabean?

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8

Ans 8:

Class : Class 6
yeah right Triguna!!! in both cases soybean is present? why so?

Ans 9:

Class : Class 9
Both Wheat and Maize require rotation of crops.

Ans 10:

Class : Class 9

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
They did not provide options on my laptop but option C is correct.

Ans 2:

Class : Class 10
They did not give the options on my iPad so I couldn't see which was the correct ans. something needs to be done about this problem.

Ans 3:

Class : Class 9

Ans 4:

Class : Class 6
No options

Ans 5:

Class : Class 6
They did not give options on my ipad .

Ans 6:

Class : Class 6
They're not even giving me options

Ans 7:

Class : Class 10
They did not give options so that is why it went wrong. these kind of incidents happen very frequently in SOF

Ans 8:

Class : Class 7
Want option!

Ans 9:

Class : Class 6
they should be more careful

Ans 10:

Class : Class 9

Ans 11:

Class : Class 6
they MUST and SHOULD be more CAREFUL. No options??? Then, how should we answer their question??? they take no actions! look:-a person has commented a year ago but?NO RESPONSE

Ans 12:

Class : Class 9
they didnt give the options

Ans 13:

Class : Class 6
options are missing

Ans 14:

Class : Class 7
my laptop din't provide the options

Ans 15:

Class : Class 8
they didn't give the options to my computer

Ans 16:

Class : Class 9
they did not give options

Ans 17:

Class : Class 10
they didn't given on question page so all my friends and I missed that question

Ans 18:

Class : Class 10
NO OPYIONS!

Ans 19:

Class : Class 10
no options

Ans 20:

Class : Class 7
I typed in c. What is this?

Ans 21:

Class : Class 10
I got the question with the options in my laptop. For those who did not get the options : it is the website's fault

Ans 22:

Class : Class 10
iT IS NOT LAPTOP'S MISTAKE IT IS THE WEBSITE'S MISTAKE ITSELF.

Ans 23:

Class : Class 7
They didn't give options

Ans 24:

Class : Class 6
The shadow will be whole black as the book is an opaque object and will not allow any light to pass through it so on the screen it will form a shadow. And the rest that is the ring, no light will reach it thus how can its shadow be formed?

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
Option D

Ans 2:

Class : Class 10
d

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8
Correct answer is, C

Ans 5:

Class : Class 9
the correct answer should be C

Ans 6:

Class : Class 9
B C D is the answers

Ans 7:

Class : Class 4
ACTUALLY I DISAGREE WTH my PAST SELF SAYING c IT IS d

Ans 8:

Class : Class 9
I think Dalso

Ans 9:

Class : Class 7
THE CORRECT ANSWER IS D BECAUSE THEY NEED TO OVERCOME DEFICIENCY OF NITROGEN

Ans 10:

Class : Class 5
Correct answer is D.Because insectivores plants can photosynthesise.

Ans 11:

Class : Class 4

Ans 12:

Class : Class 5
D is correct

Ans 13:

Class : Class 6
This is actually multiple Answer Q.It is silly!!!

Ans 14:

Class : Class 7
c and d are both the answers i think

Ans 15:

Class : Class 9
B,Care correct as they can not do photosynthesis , uses his leaves to catch food

Ans 16:

Class : Class 7
c

Ans 17:

Class : Class 4
Its just sooo Confusing Tel the logi I dont understand!!

Ans 18:

Class : Class 7

Ans 19:

Class : Class 10
correct ans is C

Ans 20:

Class : Class 4
Correct answer is C

Ans 21:

Class : Class 7
Answer should be C and D.

Ans 22:

Class : Class 4
C

Ans 23:

Class : Class 6
Yes, it is a multiple answer question.

Ans 24:

Class : Class 4
c

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
U

Ans 2:

Class : Class 3
U

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
yes. Gauri Singh is right . option c is right .

Ans 2:

Class : Class 6
Answer B is right because if you refer to the 4th grade book, the first point written is to tilt your your head back

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6
option b is correct because by sitting with his head facing up wards would take the blood flow downside

Ans 5:

Class : Class 5
option c is correct

Ans 6:

Class : Class 9
i agree with Gauri Singh and Kashvi Sharma

Ans 7:

Class : Class 10
Option C is right

Ans 8:

Class : Class 5
On page 75 of "Learning Science for Smarter Life" for class V it is mentioned that person should sit down and lean forward. It also says to pinch the nose.All answer choices of this question are therefore incorrect.

Ans 9:

Class : Class 9
Yes,In the book it is said that the patient should be made sit and lean forward not backward and patient should be told to pinch the sides of the nose together. So the answer should be C.

Ans 10:

Class : Class 7
option c is correct

Ans 11:

Class : Class 7
Option C is correct

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 2:

Class : Class 4
Acclimatization and adaptation mean two totally different things. Adaptation means permanent adjustment to our habitat whereas acclimatization means temporary adjustment to a place where we temporarily stay for some time and get used to. In my opinion, option A is the right answer.

Ans 3:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 4:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 5:

Class : Class 4

Ans 6:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 7:

Class : Class 6
The answer is A. You should Read the book twice again. But even then also you think that the answer is B than the book is a spam. Adaptation is the permanent feature of an organism which helps it to survive in its habitat, while acclimatisation is a temprory feature or change in feature of an organism which helps it to survive in any other place rather than its habitat......................................................................

Ans 8:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 9:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 10:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Ans 11:

Class : Class 8
the answer should "a" as acclimatisation not adaptation

Post Your Answer

Subject :NSO    Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 9
answer is B

Ans 2:

Class : Class 7
it is the wrong answer if everybody start replying the answer is wrong,so the heads might change it.

Ans 3:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Answer is c

Ans 2:

Class : Class 7
No.it has muscle like organs which produces a slimy substance on which the snail moves on using bristles situated under its body

Post Your Answer