Besides being used up or stripped, how else can cold gas fuel be removed from a galaxy?

Answer

Blown out by feedback from supernovae or active black holes.

Energetic feedback resulting from supernovae explosions or the activity of central supermassive black holes can effectively blow required cold gas fuel out of the galactic system.

Besides being used up or stripped, how else can cold gas fuel be removed from a galaxy?

#Videos

NASA finds dead spiral galaxy - YouTube

JWST Finds a Bizarre Galaxy In Early Universe That Appears Dead

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