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Smoke is formed due to / धुआँ किसके कारण बनता है?

Smoke is formed due to/ धुआँ किसके कारण बनता है?
(1) solid dispersed in gas/ ठोस गैस में छितराया हुआ
(2) solid dispresed in liquid/ ठोस द्रव में परिक्षिप्त
(3) gas dispresed in solid/ ठोस में परिक्षिप्त गैस
(4) gas dispersed in gas/ गैस गैस में बिखरी हुई है

Answer / उत्तर :-

(1) solid dispersed in gas/ ठोस गैस में छितराया हुआ

Explanation / व्याख्या :

Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. It is commonly an unwanted by-product of fires (including stoves, candles, oil lamps, and fireplaces), but may also be used for pest control (cf. fumigation), communication (smoke signals), defensive and offensive capabilities in the military (smokescreen), cooking (smoked salmon), or smoking (tobacco, cannabis, etc.). Smoke inhalation is the primary cause of death in victims of indoor fires. The smoke kills by a combination of thermal damage, poisoning and pulmonary irritation caused by carbon monoxide, hydrogen cyanide and other combustion products. / Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air that is entrained or otherwise mixed into the mass. It is commonly an unwanted by-product of fires (including stoves, candles, oil lamps, and fireplaces), but may also be used for pest control (cf. fumigation), communication (smoke signals), defensive and offensive capabilities in the military (smokescreen), cooking (smoked salmon), or smoking (tobacco, cannabis, etc.). Smoke inhalation is the primary cause of death in victims of indoor fires. The smoke kills by a combination of thermal damage, poisoning and pulmonary irritation caused by carbon monoxide, hydrogen cyanide and other combustion products. 

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