My 5 years old Daughter, Maliha (Ma-lee-a), wants to know why it is that oysters let out air bubbles when they open their shell, but they never got to the surface for air? (I thought maybe because of air in the soil or plants, but I'm not even sure. I know they filter feed). Help this poor mom with an answer, and I'll tell her everyone in the world told me to tell you.
When clams and oysters open why do they have air bubbles, but they don't go to the surface?
they filter oxygen out of the water
Reply:Would it be like fish with their gills? As they swim they filter the oxygen??
I hope I helped a little :)
Reply:I always thought it was because they burped...
Reply:They breathe oxygen dissolved in the water they live in, and exhale it in the form of bubbles.
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