A gas bubble released at the bottom of a lake grows in size as it rises due to a decrease in pressure. As the bubble ascends towards the surface, the pressure surrounding it decreases. This decrease in pressure causes the gas inside the bubble to expand according to Boyle’s Law, which states that the volume of a gas is inversely proportional to the pressure exerted on it, assuming constant temperature. Therefore, as the pressure decreases with increasing depth, the gas bubble expands, resulting in its size increasing as it rises towards the surface of the lake.
