Question: Which portion of the Nile runs from the nation descendants of African Americans migrated from, to the country where Hay Al-Arab is found?

The Nile (Arabic: النيل‎, written as al-Nīl; pronounced as an-Nīl) is a major north-flowing river in northeastern Africa, and is the longest river in Africa and the disputed longest river in the world (Brazilian government claims that the Amazon River is longer than the Nile). The Nile, which is about 6,650 km (4,130 mi) long, is an "international" river as its drainage basin covers eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Republic of the Sudan and Egypt. The White Nile is considered to be the headwaters and primary stream of the Nile itself. The Blue Nile, however, is the source of most of the water and silt. The White Nile is longer and rises in the Great Lakes region of central Africa, with the most distant source still undetermined but located in either Rwanda or Burundi. It flows north through Tanzania, Lake Victoria, Uganda and South Sudan. The Blue Nile begins at Lake Tana in Ethiopia and flows into Sudan from the southeast. The two rivers meet just north of the Sudanese capital of Khartoum.The northern section of the river flows north almost entirely through the Sudanese desert to Egypt, then ends in a large delta and flows into the Mediterranean Sea. Egyptian civilization and Sudanese kingdoms have depended on the river since ancient times. Most of the population and cities of Egypt lie along those parts of the Nile valley north of Aswan, and nearly all the cultural and historical sites of Ancient Egypt are found along river banks. In particular, the Nile is the primary water source of Egypt and Sudan.The river Nile has two major tributaries, the White Nile and Blue Nile. <SEP> Hai Al-Arab is a neighborhood of Khartoum, Sudan. It, along with other neighborhoods of Khartoum, is serviced by international charities. <SEP> with over 90 million inhabitants, egypt is the most populous country in north africa and the arab world, the third-most populous in africa (after nigeria and ethiopia), and the fifteenth-most populous in the world. the great majority of its people live near the banks of the nile river, an area of about 40,000 square kilometres (15,000 sq mi), where the only arable land is found. the large regions of the sahara desert, which constitute most of egypt's territory, are sparsely inhabited. about half of egypt's residents live in urban areas, with most spread across the densely populated centres of greater cairo, alexandria and other major cities in the nile delta. <SEP> uganda (/ juː ˈɡændə / yew - gan - də or / juː ˈɡɑːndə / yew - gahn - də), officially the republic of uganda, is a landlocked country in east africa. it is bordered to the east by kenya, to the north by south sudan, to the west by the democratic republic of the congo, to the south - west by rwanda, and to the south by tanzania. the southern part of the country includes a substantial portion of lake victoria, shared with kenya and tanzania. uganda is in the african great lakes region. uganda also lies within the nile basin, and has a varied but generally a modified equatorial climate. <SEP> The vast majority of these, some 120,000, are Beta Israel, most of whom are recent immigrants who came during the 1980s and 1990s from Ethiopia. About 150,000 East African and black people live in Israel, amounting to just over 2% of the nation's population. In addition, Israel is home to over 5,000 members of the African Hebrew Israelites of Jerusalem movement that are descendants of African Americans who emigrated to Israel in the 20th century, and who reside mainly in a distinct neighborhood in the Negev town of Dimona. Unknown numbers of black converts to Judaism reside in Israel, most of them converts from the United Kingdom, Canada, and the United States.