The climate in Mauritania has no general classification to it as a whole. However, it has been observed that when divided into four climate zones, a general climate profile could be observed on the four different zones. The four zones are: The Saharan Zone, the Sahelian Zone, the Senegal River Valley and the Coastal Zone.

Hassaniya dialect of Arabic (official and national); Other languages spoken include: Pulaar, Soninke, Imraguen language, Wolof and French (widely used in media and among educated classes, see African French).

The ouguiya (sign: UM; currency code: MRO), is the currency of Mauritania. It is the only circulating currency other than the Malagasy ariary whose division units are not based on a power of ten, each ouguiya comprising five khoums (singular and plural in English, Arabic: خمس‎, meaning "one fifth").

http://www.mauritania.visahq.com

The population of Mauritania in 2003 was estimated by the United Nations at 2, 893, 000, which placed it as number 133 in population among the 193 nations of the world. In that year approximately 3% of the population was over 65 years of age, with another 44% of the population under 15 years of age.

Nouakchott is the capital and by far the largest city of Mauritania. It is one of the largest cities in the Sahara. The city is the administrative and economic centre of Mauritania.