National Science Olympiad Forum By SOF Olympiad Trainer - Page 592

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
A

Ans 3:

Class : Class 5

Ans 4:

Class : Class 9
why is the answer A

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
can someone tell me the ans

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Subject :NSO    Class : Class 8

Mrs. Mehra, who is 32 years old, underwent a surgery to get her oviducts removed after having girl. Now, she wants to have another baby. Do you think she can have another baby?

A Yes, she can have another baby as her ovaries are still functional to produce eggs.
B No, she cannot have another baby because fertilisation of egg takes place in the oviduct.
C Yes, she can have another baby because the surgery can be reversed.
D No, she cannot have another baby as the hormones associated with the oviduct will not be present.


According to me the answer should be A as IVF technique can be still used, but the answer mentioned is B. need help and guidance

Ans 1:

Class : Class 10

Ans 2:

Class : Class 8
She can have IVF.

Ans 3:

Class : Class 10
why isn't IVF possible A should be the answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
The answer is option A..............

Ans 2:

Class : Class 9
The answer is option A..............

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Subject :NSO    Class : Class 5

Rohan's meal contains sufficient amounts of milk, egg, rice, chappati and even fish. But, still he complains of indigestion and constipation. doctor advised him to increase intake of green leafy vegetables like cabbage, spinach, corn, fruits like banana, orange and also drink more water. How would this help him to improve his condition?

ARoughage in fruits and green vegetables would provide him more energy to tolerate problems of indigestion and constipation.
BRoughage present in fruits and green leafy vegetables and water would help him to get rid of undigested food
CGreen leafy vegetables and fruits would make his bones and muscles strong and he would be able to digest food easily.
DDrinking more water will reduce digestion and absorption of food, and thus it will pass out easily as faeces.


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Subject :NSO    Class : Class 8

The given diagram shows many sperms near an egg. Which of the following statements about reproduction in animals are incorrect?

i Sperms are produced by male animals.
ii Usually, one egg is fertilized by many sperms.
iii After fertilization, the egg will grow and develop into young animal.
iv Fertilization always takes place while the egg is still inside the body of the female animals.

A i only
B ii and iv
C iii and iv
D i, ii and iii


i think the answer of this question is wrong.

Ans 1:

Class : Class 7
but how the answer is option(b).Please explain

Ans 2:

Class : Class 9
Option b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
please provide justification

Ans 2:

Class : Class 3
I am Sanyam Gupta This Question was very Interesting THANK YOU $$

Ans 3:

Class : Class 8
tough

Ans 4:

Class : Class 3
Anyone knows how s the solution determined?

Ans 5:

Class : Class 5
tough question

Ans 6:

Class : Class 5
stop sof you are always wrongno one is corecct everyone may use you but you are wrong wong wrong

Ans 7:

Class : Class 3

Ans 8:

Class : Class 8
The answer is C because the rule is followed -[ 7 - 6 ] [ 9 - 6 ] = 1 3 = 4[ 8 - 5 ] [ 9 - 2 ] = 3 7 = 10 [ 6 - 3 ] [ 5 - 4 ] = 3 1 = 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
d

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 5

Ans 3:

Class : Class 9
d

Ans 4:

Class : Class 4
NOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!! i DONT BElive

Ans 5:

Class : Class 1
it is right Soumyajit

Ans 6:

Class : Class 6

Ans 7:

Class : Class 3
corrwct yeeeee!!

Ans 8:

Class : Class 7
Pankaj, why are you telling no . It should option 'd'.

Ans 9:

Class : Class 3
The option is D correct

Ans 10:

Class : Class 5
class:3the answer is D

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Option a is wrong because yeast does not convert sugar into lactic acid.

Ans 2:

Class : Class 8
Option C is the correct answer because yeast causes fermentation .Fermentation is an anaerobic process. In this process yeast converts sugar into alcohol and carbon dioxide. Lime water turns milky indicating the presence of carbon dioxide.

Ans 3:

Class : Class 8
I think that option A and C should be correct. Since option A talks about fermentation occuring which could be true considering that yeast is put into warm sugar solution. Option C is also correct since we know that one of the end products of fermentation is CO2 and lime water turns milky white when it is combined with carbon-dioxide.

Ans 4:

Class : Class 8
Then option A should also be correct as it talks about fermentation

Ans 5:

Class : Class 8
answer cant be A since during fermentation of sugar alcohol is produced and not lactic acid

Ans 6:

Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
A

Ans 2:

Class : Class 9
A vector diagram is a diagram which shows both direction and magnitude....hope you found it helpful!

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