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a geographic region with too little rainfall to support much plant life; also a vegetation zone
to lose heat and change from a vapor or gas into a liquid. Moisture, or water vapor, in the air condenses to form rain
water from rainfall that is not absorbed into the soil and instead flows into streams or lakes
the triangle-shaped deposit of sand and sediment that occurs where a river flows into and ocean
the raising of livestock for food by moving herds from place to place to find pasture and water
a huge swamp on the plains of Sudan. Here, the White Nile spreads into many small channels clogged with vegetation
is in the forested hills of Ethiopia. Run off flows into Lake Tana, which then feeds the Blue Nile.
the capital of Sudan, is the location of the CONFLUENCE, or coming together of the White and Blue Nile.
is a wide turn in the Nile River. North of Khartoum, the river makes this wide turn to the south and the west
in northern Sudan the Nile enters a vast desert. The Nile provide the only relief, trees grow on its banks, and people irrigate small farm plots
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