Question

what are the uses of blue zone and dark zone of candle flame?

Answer 1

Answer:

Blue zone:

At this stage there is incomplete burning of carbon dioxide thus resulting in formation of carbon monoxide. This flame is usually used for heating as the temperature is more at this zone

Black zone:

So the movement of molten wax up away from the wick is due to phenomena called capillary action. This molten wax around the wick forms the dark zone. This dark zone is supposed to be the hottest due to the decomposed carbon particles formed during vaporization

i hope this will help you

Explanation:

Answer 2

Answer:

Explanation:

Due to months without sunlight, residents of the city live under artificial sunlight but yet the city still lies in the Frigid Zone.