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Bubble free aeration systems requires | |
A. | silicone tubing or gas permeable membranes to facilitate gas transfer [Correct Answer] |
B. | carbon dioxide instead of air to supply oxygen [Wrong Answer] |
C. | silicone tubing or gas permeable membranes to remove carbon dioxide by oxygen in the form of hydrogen peroxide [Wrong Answer] |
D. | filled headspace of the reactor with carbon dioxide [Wrong Answer] |