Many people decided to move from more rural areas that offered land and space for farming to cities that had factories and offered job opportunities
Greece, Italy, and Spain are known as Mediterranean climates.
These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres