Straight forward question, is it improbable of a plant dying due to lack of Co2...............another, but more lenient analogy of the question also, [analogy - theirs a small air tight, closed off space (say a closed bag), and their is a fan only to exhaust the air inside the bag out...would the plant be able to sustain that type of environment?
Well how tight are we talking I'm sure you aren't growing in a vacuum? But yeah plants wont be happy if they aren't receiving fresh air
A plant will live a long time without CO2, it just won't grow. I doubt you could kill one that way... -Loki