geophysics public under geology 20, physics 9 List Picture As a command %3 n0 geophysics n3 geodesy n0->n3 n4 hydrology n0->n4 n5 geomorphology n0->n5 n6 seismology n0->n6 n7 volcanology n0->n7 n1 geology n1->n0 n2 physics n2->n0