Distribution of the pressures due to the various feedback mechanisms as a function of H II region radius, as well as stellar population mass (circle size) and age (circle colour). We show a key for the size (i.e. mass) and a colour bar denoting the age at the bottom of the left panel. The horizontal lines show the 25, 50 (median), and 75 percentiles for each pressure. The intrinsic relations of each pressure term are shown as a short dashed line in the upper right of each panel.