Question

How the flame maintains its shape?​

Answer 1

Answer:

To start with, a flame is a hot glowing body of ignited gas. However a flame always point upwards because the flame's gas is hotter than the surrounding air and a hot gas is always lighter or less dense than a cold gas. ... Consequently the hot air balloon or air ship rises and flies.

Answer 2

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As the hot gases rise, they create an air current roughly tube shaped around the wick. This air current draws in air from below and surrounds the flame with a hollow column of gases. This keeps the flame roughly cylindrical in shape.

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