Answer:
Air
Explanation:
depending on the concentration of Oxygen in any of the medium- air or water, Oxygen pick up will be easier in air than water. This is because the energy barrier for the exchange of gases is higher in a liquid medium than in a gaseous medium.
Respiration would be easier in air than water
Respiration is the process of taking in oxygen and giving out CO₂ through the oxidation of organic substances in the body. The process of respiration leads to the production of energy in the body.
Respiration would be easier in a gaseous medium ( air ) than it would be in water because air molecules are more loosely packed and therefore allows the free movement of oxygen ( lesser energy barrier ) .
Hence we can conclude that Respiration would be easier in air than water.
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