Answer: Human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed biologically, we humans are Hono Sapines, a culture-bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
Hello, to answer your question properly.
Beacause the earthquake itself caused houses and buildings to collapse.
And any house that survived was consumed by fires that were started by the earthquake.
Are you asking for the definitions?