Cities are urbanized areas, farms are rural areas, so basically urbanized areas are areas with a concentrated amount of people and buildings and factories and technology and all that
If you could dig a tunnel right through the Earth you could theoretically free-fall to the centre of our planet in just eighteen minutes. You can’t, of course: such a tunnel would have to tolerate temperatures as high as the surface of the Sun and pressures three and a half million times greater than those at the Earth’s surface.
Volcanism describes these processes.
