Scatter plots of GMAs in different environments. Colors and symbols are the same as those in Figure 5. (a) M_c vs. R_c. The black solid line indicates the best fit of the M_c–R_c relation with all GMAs. The slope is 1.01 ± 0.14. The CCs of each environment are provided in the lower-right corner of the plot. (b) σ_c vs. R_c. The best fit with all populations is shown by a black line. The slope of the best fit is presented in the lower-right corner along with the CCs of each environment. (c) Σ_SFR vs. ﹩{{\rm{\Sigma }}}_{{{\rm{H}}}_{2}}﹩, the so-called Kennicutt–Schmidt relation. The three dashed lines denote SFE values of 10⁻¹⁰ (bottom), 10⁻⁹(middle), and 10⁻⁸ (top) yr⁻¹. The derived slopes of each environment are shown in the lower-right corner of the plot. Panels (d), (e), and (f) display α_vir vs. M_c, Σ _SFR, and SFE, respectively.