The partial pressure of oxygen in a pond is lower than the partial pressure of oxygen in the air above the pond.The concentration of oxygen in the pond is higher than in the air.Under these conditions,

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Quizplus · Accepted Answer

The direction of movement of gases is from an area of higher partial pressure to an area of lower partial pressure. In this case, the partial pressure of oxygen in the air is higher than that in the pond. Therefore, the oxygen will move from the air into the pond until the partial pressures are equalized. Additionally, it's important to note that oxygen and carbon dioxide do not move concurrently. Rather, their movement is determined by the partial pressure gradient. Therefore, choice D is incorrect. Choice E is also incorrect as oxygen cannot move directly into trees.

The Partial Pressure of Oxygen in a Pond Is Lower