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Question

The shape of a flame inside a space shuttle when there is no gravity will be _______.


A

Diffusion

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B

Convection

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C

Condensation

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D

Evaporation

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Solution

The correct option is A

Diffusion


A flame is just burning gases. The reason why a flame points upwards is because hot burning air moves up and displaces cold air. All this is possible only when there is gravity.

In the absence of gravity, there wouldn't be any specific direction in which the gases move and so it would be uniform in all directions making it a sphere.


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