In luminous flame the flame is produce when the air hole is open or close?

In luminous flame the flame is produce when the air hole is open or close?
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A bunsen burner (as used in a science lab or science classroom) will burn quietly, and a flickery yellow (like a wax candle) if the air hole is closed, or closed too much. If the air holes is opened, the flame will turn bluish and become noisy and hotter as more air mixes with the gas.
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