Naturalization is the term to describe the process of becoming a citizen of the United States.
The correct option is D.
The age of exploration is used to refer to that period in the European history during which extensive efforts were made at exploration and new discovery. That period was regarded as the beginning of globalization. There were many factors which geared people towards exploration at that time and these include: the need to get access to new trade routes, getting Christianity religion across to other nations, etc. Spreading the idea of new enlightenment was not one of these factors.
The correct answer is - The region is dominated by desert and high elevations.
Most of the population of China is concentrated in the eastern half of the country, while the western half is very sparsely populated. The main reason for this is the geography and the climate of this part of China.
The western half of the country is dominated by high mountains, the highest in the world actually, the Himalayas, the Tibetan Plateau, deserts and semi arid ares. All of these places are not suitable for living, especially not for larger populations, so there's towns and villages that far away from one another, and they have relatively small populations.
