National Science Olympiad Forum By SOF Olympiad Trainer - Page 702

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
It is b

Ans 2:

Class : Class 9
It should be ALL OF THESE.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 10

Ans 5:

Class : Class 10
none of the options are correct

Ans 6:

Class : Class 8
Why is it b

Ans 7:

Class : Class 8
It is option 'b', since you cannot remove the building as mentioned in option 'a'. Water does reduce the temperature of both wood and paper below their ignition temperature to combust fire. Option 'c' is partially correct but also wrong since co2 does form a blanket around the flame, cutting out o2 supply, but it does this because it is heavier then o2, not light.

Ans 8:

Class : Class 8
It is B because U cannot remove the building and in option C, CO2 is heavier not lighter thann Oxygen

Ans 9: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 10:

Class : Class 5

Ans 11:

Class : Class 8
Its all of these.

Ans 12:

Class : Class 8
answer is D formation of a blanket around the oxygen gascuts off the supply of oxygen !!also cooling it down

Ans 13:

Class : Class 9
not all of these we if u see option a it says to remove the entire combustible material nut how can you remove an entire building if it is on fire?

Ans 14:

Class : Class 10
it is b

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
option C is the right answer

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 10

Ans 4:

Class : Class 8
The Weaver bird uses its beak like a needle to sew leaves and other materials to make a nest,that's true............ The Penguin collects a few pebbles and stones to make a nest,that's true........... Eagles and vultures simply put a few sticks together,that's false........... The Woodpecker pecks a tree trunk with its beak to make a hole for nest,that's true............ So,OPTION (C) will be INCORRECT.

Ans 5:

Class : Class 10

Ans 6:

Class : Class 10
option CSOF waalon ans. change karo

Ans 7:

Class : Class 5
Answer is A because tailor bird uses its beak like a needle to sew leaves and other material to make a nest.weaver bird weaves and makes a nest.

Ans 8:

Class : Class 10
YES OPTION C IS CORRECT

Ans 9:

Class : Class 5
Option C is correct

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
ramp is an inclined plane

Ans 2:

Class : Class 7
d because they asked incorrect one!!!!!!!!!!!!you all did'nt read it correctly

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6
ans is B as knife and axe have one inclined plane

Ans 5:

Class : Class 9
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Ans 6:

Class : Class 5
Answer is B.

Ans 7:

Class : Class 5
Somebody tell the correct answer! 1 is saying B and another one is saying D. Tell the correct answer

Ans 8:

Class : Class 6
What is an inclined plane ?

Ans 9:

Class : Class 7
CORRECT ANSWER IS d

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3
What is happening c

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
C should be the answer, right?

Ans 4:

Class : Class 4
Tell the reason Mr. Admin??? It would be C)OK!!!

Ans 5:

Class : Class 4
dddddddddddd should be the ans

Ans 6:

Class : Class 8
Please explain

Ans 7:

Class : Class 4
I mean B.

Ans 8: (Master Answer)

Class : Class 1

Ans 9:

Class : Class 3
ans should be c coz when air molecules come the water molecules will go out right??? so ans is c

Ans 10:

Class : Class 4
correct

Ans 11:

Class : Class 5
how is it A? What is happening in A?

Ans 12: (Master Answer)

Class : Class 1

Ans 13:

Class : Class 5
Answer is D because in option A the water is going to the bottle and in option D it's just blowing air.

Ans 14:

Class : Class 8
answer: A

Ans 15:

Class : Class 9
The correct answer is D.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
question no 19 and 20 are coming together.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 5
option B

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7
option B

Ans 4:

Class : Class 7
I think it's option b earthworm

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
According to scientific facts all reptiles have backbone . If they didn't have a backbone they couldn't crawl .

Ans 2:

Class : Class 2
According to Known Scientific facts options a) b) and c are non vertebrate so why are Options a and b are not part of right answer? At times quality of questions raise a doubt about due diligence being put in articulating the questions .

Ans 3:

Class : Class 5
i think it is option a b and c

Ans 4:

Class : Class 3
Option D has a backbone for sure so the answer should be either A,B or C.

Ans 5:

Class : Class 9
the answer is c crickets donot have backbone. fish obviously has backbone snakes have flexible backbone(cartilage) and all reptiles have backbone

Ans 6:

Class : Class 8
D

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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