A person trapped in a swamp is advised to lie down because as the area increases, the pressure decreases. Distributing the weight over a larger surface area reduces the pressure exerted on the swamp’s surface, making it less likely to sink further.
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A person trapped in a swamp is advised to lie down because as the area increases, the pressure decreases (A). When lying down, the person’s weight is distributed over a larger surface area, reducing the pressure exerted on the swamp’s surface. Option (A) accurately explains the reason behind this advice. Options (B) and (C) are incorrect as they do not reflect the relationship between pressure and area accurately. Option (D) is also incorrect as it suggests that all options are valid, which is not the case. Therefore, option (A) provides the most appropriate explanation for why a person trapped in a swamp should lie down, as it describes the physical principle of pressure distribution and its effect on sinking in soft surfaces like swamps.