how much oxygen is there in the air pockets in underwater caves, and is it replenished somehow?
In: Biology
There is oxygen in the water, and that oxygen can diffuse into the atmosphere. We obviously know the ocean is an enormous source of our oxygen creation by algea.
So yes, even if its permanently sealed even at low tide, the air would still exchange co2 and oxygen with the water.
Not suggesting to bring 200 friends in, because low surface area and minimal surface agitation will make it a slow process, but it would gravitate to resupplying with oxygen.
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