Which zone is the coldest?

The * FRIGID * zone is the coldest zone on the earth . This zone remains frozen throughout the year . ? It extends from 66 1/2 ( Arctic Circle )degree north to 90 degree north ( North pole ) .

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You can also ask why is candle flame blue?

When a flame does not get enough oxygen, it tends to undergo "incomplete" combustion, resulting in larger exhaust products (usually carbon compounds). This causes the exhaust to look more orange due to incandescence. As the flame becomes more saturated, its color turns to blue. Which flame is hotter blue or red? Although red usually means hot or danger, in fires it indicates cooler temperatures. While blue represents cooler colors to most, it is the opposite in fires, meaning they are the hottest flames. When all flame colors combine, the color is white-blue which is the hottest.

Consequently, why do candles burn yellow?

Burning of wax is burning low energy fuel in a low oxygen content. The incomplete burning of wax produces small unburnt carbon particles. When wax burns the unburnt carbon atoms get heated and form a luminous yellow flame. And another question, what flame contains? The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma.

Keeping this in consideration, what colour is candle flame?

yellow The typical yellow color of a candle flame or wood fire is therefore produced primarily by the hot soot. The mixing of the fuel and the O2 is the slowest part of the combustion process and, therefore, the rate determining step.