Subject :NSO Class : Class 3
Subject :NSO Class : Class 3
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Subject :NSO Class : Class 8
Ans 1:
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 5:
Class : Class 8
It is B because U cannot remove the building and in option C, CO2 is heavier not lighter thann Oxygen
Ans 6:
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 8
answer is D formation of a blanket around the oxygen gascuts off the supply of oxygen !!also cooling it down
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Subject :NSO Class : Class 4
Ans 2:
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 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.
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 5
Ans 3:
Class : Class 10
According to scientific facts all reptiles have backbone . If they didn't have a backbone they couldn't crawl .
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 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 .