Subject :NSO Class : Class 7
Subject :NSO Class : Class 5
Ans 1:
Class : Class 5
sedimentation and decantation is the answer .
but filtration can not come because we can see in the picture itself that the particles are big ,that's why sedimentation and decantation .
if the particles are small but yet insoluble , then only it is filtration .
I hope that you understood.
Ans 3:
Class : Class 5
Ya, filtration can also remove insoluble impurities but in this case sedimentation and decanation is more appropriate answer.
Ans 5:
Class : Class 9
it needs to be sedimentation and decantation because the insoluble material present in the liquid is quite heavy
you only perform filtration when the particles float over the surface of the water
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 8
Ans 7:
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 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
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Subject :NSO Class : Class 6
Ans 6:
Ans 10:
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?
Ans 15:
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 18:
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 19:
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 21:
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
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Subject :NSO Class : Class 4
Ans 16:
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 5
Ans 6:
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 7:
Class : Class 6
option b is correct because by sitting with his head facing up wards would take the blood flow downside
Ans 8:
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 10:
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.
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Subject :NSO Class : Class 6
Ans 3:
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 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......................................................................