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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 8
the correct answer is c.

Ans 3:

Class : Class 8
the correct answer is c.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
6

Ans 2:

Class : Class 3
6

Ans 3:

Class : Class 3
6

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Subject :NSO    Class : Class 8

Different methods of extinguishing a fire involve the following :
I. Removing the combustible substance.
II. Cooling the substance to a temperature below its ignition temperature.
III. Cutting off the supply of air.
Which of the following statements is correct?

A Method I is suitable in case of a building on fire.
B Method II involves water which works when wood or paper are on fire.
C Method III involves carbon dioxide gas which is lighter than oxygen and forms a blanket around the air.
D All of these


whats wrong with B

Ans 1:

Class : Class 9

Ans 2: (Master Answer)

Class : Class 1
The correct answer is B.

Ans 3:

Class : Class 8
Its all of these.

Ans 4:

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

Ans 5:

Class : Class 5

Ans 6:

Class : Class 8
Why is it b

Ans 7:

Class : Class 9
It is b

Ans 8:

Class : Class 9
It should be ALL OF THESE.

Ans 9:

Class : Class 10
it is b

Ans 10:

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 11:

Class : Class 8

Ans 12:

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 13:

Class : Class 10
none of the options are correct

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Subject :NSO    Class : Class 4

Ans 1:

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 2:

Class : Class 5
Option C is correct

Ans 3:

Class : Class 6
option CSOF waalon ans. change karo

Ans 4:

Class : Class 9
YES OPTION C IS CORRECT

Ans 5:

Class : Class 5
option C is the right answer

Ans 6:

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 7:

Class : Class 4
C

Ans 8:

Class : Class 9

Ans 9:

Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Class : Class 5
Answer is B.

Ans 3:

Class : Class 7
CORRECT ANSWER IS d

Ans 4:

Class : Class 8
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Ans 5:

Class : Class 5

Ans 6:

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

Ans 7:

Class : Class 6
What is an inclined plane ?

Ans 8:

Class : Class 5
ramp is an inclined plane

Ans 9:

Class : Class 6
d because they asked incorrect one!!!!!!!!!!!!you all did'nt read it correctly

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Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
dddddddddddd should be the ans

Ans 4:

Class : Class 7
The correct answer is D.

Ans 5: (Master Answer)

Class : Class 1

Ans 6:

Class : Class 7
Please explain

Ans 7:

Class : Class 3
What is happening c

Ans 8:

Class : Class 4
I mean B.

Ans 9:

Class : Class 4
correct

Ans 10:

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

Ans 11:

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

Ans 12:

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 13:

Class : Class 7
answer: A

Ans 14: (Master Answer)

Class : Class 1

Ans 15:

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

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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 7

Ans 2:

Class : Class 5
option B

Ans 3:

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

Ans 4:

Class : Class 7
option B

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 8
the answer is c crickets donot have backbone. fish obviously has backbone snakes have flexible backbone(cartilage) and all reptiles have backbone

Ans 4:

Class : Class 8
D

Ans 5:

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 6:

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

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