Could spaceships just put a bunch of plants on board to produce all their oxygen and get rid of the carbon dioxide?
In: Biology
Yes, they could, but plants take a lot of space. They need dirt, fertilizer that contains minerals, a BUNCH of water (takes a lot of space on a spaceship) sunlight and space to grow. Spaceships usually don’t have that much place to waste, so it’s better for them to use compressed oxygen
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