[tex] \bf \huge \green{ANSWER}[/tex]
The mass urbanization of the human race is a relatively new phenomenon in the history of civilization. In 1900, when geology was maturing as a science, only 10 percent of the global population lived in urban settings; now, this proportion has surpassed 50 percent, fed by both overall population growth and rural-to-urban migration. And by 2030, it is expected to reach 60 percent. The United States reached 50 percent urbanization around 1930 and is now approaching 70 percent. The urban population of Canada, meanwhile, accounts for about 80 percent of the country’s people. Ten urban areas around the world now exceed 20 million people, with the Tokyo metropolitan area approaching 35 million — larger than the populations of most countries.
