National Science Olympiad Forum By SOF Olympiad Trainer - Page 650

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class :

The correct answer is C

Gases do not have a fixed shape and are compressible, liquids also do not have fixed shape but cannot be compressed as they have a fixed volume. Solids have fixed shape, fixed volume and can either float or sink in water depending upon their density.


Ans 2:

Class : Class 9

Ans 3:

Class : Class 3

Ans 4:

Class : Class 6
I couldn't even scorl

Ans 5:

Class : Class 9
c

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
B

Ans 2:

Class :
The answer is B

Ans 3: (Master Answer)

Class :

The correct answer is B - Gibbous


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Subject :NSO    Class : Class 3

Ans 1:

Class :
i am a genius

Ans 2:

Class :
I AM IN CLASS 10TH BUT IT IS WRITTEN WRONG SO SORRY [IT IS WRITTEN CLASS 3RD]

Ans 3:

Class : Class 3
but I think small one

Ans 4:

Class : Class 8

Ans 5:

Class :
TRH J3we]ART68 [PL;[0]'1;LPO; [KOREN]YUL

Ans 6:

Class :
Aq1wwwwwwwwwwwwwww

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class :

The correct answer is A.

Count the number of total balls = 21
Count the number of crossed balls = 6
So, the subtraction sentence will be 21 - 6.
Now make the subtraction sentences for all options:
(A) 2 tens 1 one - 6 ones = 21 - 6 
(B) 2 tens 2 ones - 6 ones = 22 - 6 
(C) 2 tens - 6 ones = 20 - 6
(D) 2 tens 3 tens - 6 ones = 23 - 6


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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
It will be 8/56,every answer is wrong because its a proper fraction so 8/56=8/56

Ans 2: (Master Answer)

Class :

The correct answer is B.

Total Smileys = 56
Green Smileys = 8
Fraction of Green Smileys = 8/56 = 1/7


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
some plants can grow by vegetative reproduction which is not by flowers. Like carrots, Carrots does not have any flowers. I think the answer is D because if there are no leaves then who will make the food for the survival of the plant.

Ans 2:

Class : Class 5
Deepayan and Sumit are right..of course it is d, if there are no leaves the plant will die, how is it going to reproduce then??

Ans 3:

Class : Class 8

Ans 4:

Class : Class 5
WE HAVE READ THAT THEY CAN GROW WITHOUT FLOWERSIF THEY HAVE NOT FLOWERS THEY GROW IN A DIFFERENT MANNERVERY STUPID OF SOFSO MANY ERRORSWHAT EVER CORRECT OPTION IS D

Ans 5:

Class : Class 5
All the answers are correct. None of them are wrong.

Ans 6:

Class : Class 5
but in some plants ther is no flower then also they can reproduce in a different manner

Ans 7:

Class : Class 6
It is not c because new plants can rise by vegetative reproduction which are not by seeds.It is by roots, stem or leaves. what, in case of byrophyllum plant.

Ans 8: (Master Answer)

Class :

The correct answer is C

Flower changes into fruits and fruit bears seeds. Seeds give rise to new plants when sown into soil.


Ans 9:

Class : Class 5

Ans 10:

Class : Class 6
In papaya plant, flower changes into fruit and fruit bears seeds. Seeds give rise to new plants when sown into the soil.

Ans 11:

Class : Class 10
Stem is also correct for some plants like mint ,

Ans 12:

Class : Class 6
the answer is d as many plants don't have flowers but still reproduce. Without the leaves, the plants can't make food.

Ans 13:

Class : Class 10
I think answer is (C) as flowers changes into fruit and fruit changes into seed.

Ans 14:

Class : Class 4
i pressed option c but its incorrect

Ans 15:

Class :
Flower attract the insects for pollination,so the answer is C

Ans 16:

Class :
but seeds can reproduce through stem , leaves , and root too , can't they ???

Ans 17:

Class : Class 5
c) WHY? Here it goes:How will it reproduce without flowers?Ideally? Leaves? Does cactus have leaves? Nope! It has leaves -2 - spines...

Ans 18:

Class : Class 4
I think it is seed only because if the other parts will no be there than how the previous plant will grow

Ans 19:

Class :
Think the correct ans'rs C Cause a flower changes into a fruit in the fruit then bears seads which give rise to new plants on being down in soil. That's what I think don't know if it is right!!!

Ans 20:

Class : Class 7
d

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
what is this man do something

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
IT WILL BE DDDDDDDDDDDDDDDDDDD

Ans 5:

Class : Class 8
b is the answer

Ans 6:

Class : Class 7
dddddddddddddddddddddddd

Ans 7:

Class : Class 9
ACCORDING TO ME THE CORRECT ANSWER IS B , FIRST WE HAVE TO UNDERSTAND THE PICTURE AND THEN ANSWER

Ans 8:

Class : Class 6
Sorry for giving the wrong information. At the beginning even I thought the answer was B.If you click the solution button, it says that since the copper rod has the least amount of wax on it, it is the better conductor as all the other wax on it has melted and fell down. That is why the answer is A not B

Ans 9:

Class : Class 6
I too agree with you .It's B and not A

Ans 10:

Class : Class 8

Ans 11:

Class : Class 8
ANSWER SHOULD BE C BECAUSE FIRRST IS CORRECT BUT METALS ARE GOOD CONDUCTERS OF HEAT

Ans 12:

Class : Class 3
the wax has been applied all over the rod. copper has the least amount of wax on it. So it is the best conductor of heat whereas the glass rod has the most amount of wax thus it is the weakest conductor of heat.Thus,the option "A" is the correct answer

Ans 13:

Class : Class 9
It must be 'B' not 'A'

Ans 14:

Class : Class 10
It is A

Ans 15:

Class : Class 9

Ans 16:

Class : Class 7

Ans 17:

Class : Class 8
OK

Ans 18:

Class : Class 7
The answer is 'a' because the rods are fully coated with wax, those rods which have less wax are good conductors because the wax melted and fell from it.

Ans 19:

Class : Class 6
it cannot be as you have said because the wax is dripping from the glass rod whereas on the copper rod, it is as it was first placed. And they will not give us a diagram if they are going to ask something not related to it.So, the answer must be B and not A.

Ans 20:

Class : Class 8
why is everyone talking about wax and copper it is a question about statements and conductivity like bruh what

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