(i) Why the transparent glass of windows, if not wiped off regularly, appears hazy?
(ii) Why during an incident of fire, one is advised to wrap a woollen blanket over a burning object?
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Que 1 - Why the transparent glass of windows, if not wiped off regularly, appears hazy?
Answer - air contains some gases, water vapour and dust particles that stick to transparent glass of Windows. these particles also attract other outdoor elements such as pollen,etc to collect an glass and make a layer. this is why, transparent glass if not wiped off regularly appears hazy.
Que 2 - Why during an incident of fire, one is advised to wrap a woollen blanket over a burning object?
Answer - blanket cuts the supply of oxygen to the object that is burning thereby prevents it from father burning.
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