Why does air pressure drop faster at lower altitudes?

Air pressure decreases with altitude because the weight of the air above compresses the layers below. At lower altitudes, there is more air above, resulting in higher pressure. As you ascend, there is less air above, causing the pressure to drop more rapidly. This phenomenon is influenced by the density of the air, which decreases with altitude, leading to a faster decline in pressure at lower elevations compared to higher ones.