Information: - The Maghreb (or ; literally "sunset"; ', "the Arab West" previously known as Barbary Coast, derived from Berber), or the Greater Maghreb ("al-Maghrib al-Kabr"), is usually defined as much or most of the region of western North Africa or Northwest Africa, west of Egypt. The traditional definition as the region including the Atlas Mountains and the coastal plains of Morocco, Algeria, Tunisia, and Libya, was later superseded, especially following the 1989 formation of the Arab Maghreb Union ( ), by the inclusion of Mauritania and of the disputed territory of Western Sahara (mostly controlled by Morocco). During the Al-Andalus era in Spain (7111492), the Maghreb's inhabitants, Maghrebis, were known as "Moors"; the Muslim areas of Spain in those times were usually included in contemporary definitions of the Maghrebhence the use of "Moorish" or "Moors" to describe the Muslim inhabitants of Spain in Western sources. - North Africa or Northern Africa is the northernmost region of Africa. The United Nations definition of "North Africa" includes seven countries and territories; Algeria, Egypt, Libya, Mauritania, Morocco, Sudan, Tunisia, and Western Sahara. The countries of Algeria, Morocco, Tunisia, and Libya are often collectively referred to as the Maghreb, which is the Arabic word for "sunset". Egypt lies to the northeast and encompasses part of West Asia, while Sudan is situated on the edge of the Sahel, to the south of Egypt. - TheMediterranean Sea (pronounced ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The sea is sometimes considered a part of the Atlantic Ocean, although it is usually identified as a separate body of water. - Oum Er - Rbia ( Arabic : , '' the mother of springtime '' ; original name in Berber : Wansifen , , '' the one of the rivers '' ) is a large , long and high - throughput river in central Morocco . The river is 555 km long . With an average water throughput of 105 m3 / s , Oum Er - Rbia is the second - largest river in Morocco after the Sebou River . It originates in the Middle Atlas and passes through the city of Khenifra , arriving at its mouth at the Atlantic Ocean at the port of Azemmour , located on its left bank . Oum Er - Rbia has six dams , the most important of which is Al Massira Dam . Its most important tributaries are El - Abid River , Tessaoute River , and Lakhdar River . The historical Berber nickname of the river was Asif n isaffen , meaning '' the river of rivers '' . According to scholars , the original Berber common name of the river is Wansifen and was only changed recently , circa 16th or 17th century , and a nearby village called Oum Rabia might have influenced this change . - Morocco (', lit. "The West"; '), officially known as the Kingdom of Morocco (', lit. "The Western Kingdom"; '), is a sovereign country located in the Maghreb region of North Africa. Geographically, Morocco is characterized by a rugged mountainous interior, large tracts of desert, and a lengthy coastline along the Atlantic Ocean and Mediterranean Sea. After reading the paragraphs above, we are interested in knowing the entity with which 'oum er-rbia river' exhibits the relationship of 'continent'. Find the answer from the choices below. Choices: - africa - europe
Answer:
africa