Answer:
south-west Eurasian steppes (present-day Russia and Ukraine).
Explanation:
Such claims became increasingly common during the early 19th century, when it was commonly believed that the Aryans originated in the south-west Eurasian steppes (present-day Russia and Ukraine). Max Müller is often identified as the first writer to mention an "Aryan race" in English.
Urbanization is the process in which the human population is increasingly more urban, that is, settled in the urban areas -in cities and in the suburbs. So urbanisation is the process of people moving to cities and to suburbs - the correct answer is:
A. a process in which an increasing number of people move to cities and suburbs
The center of the Earth is made up of two layers, the outer core and the inner core. The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth's magnetic field.