Question

differiantie between Non luminous zone, luminous zone, Dark zone ​

Answer 1

Answer:

Here there are three zones. They are: non-luminous zone,  Luminous zone and  Dark Zone.  

Non-luminous zone is the zone of complete combustion. It is the hottest zone of the candle flame and does not produce much light.  

Middle zone is the zone which is moderately hot with limited supply of oxygen.

dark zone as this zone doesn't support burning. Because there is no supply of air.

Explanation: