Burning of fuel and materials produce smoke and other harmful gases which are released out of the factories by the chimneys.
i. Why does air enter in (ii)? ii. Why does the candle get extinguished when covered with a glass jar? iii. When the candle gets extinguished, why does the level of water rise in the inverted jar (ii)?
Question
Why are factories fitted with tall chimneys?
- air around us CBSE Class 6
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