a mountainous part of a country
a raised area of land, such as a hill or mountain, with a flat top
a geographic region with too little rainfall to support much plant life; also a vegetation zone
the area drained by a river and its tributaries
the movement of water from the surface of the Earth to the atmosphere and back again
sand, mud or clay made up of fine bits of soil found at the bottom of a river or lake
a system that allows for the year round watering of crops
the electrical power that can be generated from the flowing of water
the process by which a liquid, such as water, turns into a vapor, or gas
water in the form of a gas, as in steam or moisture in the atmosphere
to lose heat and change from a vapor or gas into a liquid. Moisture, or water vapor, in the air condenses to form rain
the movement of water from Earth's surface into the soil
water from rainfall that is not absorbed into the soil and instead flows into streams or lakes
the stream or streams that make up the beginnings of a river
the flowing together of two or more streams
a series of rapids and low waterfalls on a river
the usually dry bed of a river or stream in a desert or semiarid area
an artificial lake where water is stored
the triangle-shaped deposit of sand and sediment that occurs where a river flows into and ocean
a type of tropical grassland
a vegetation zone of mainly small trees and bushes adapted to a Mediterranean climate
the raising of livestock for food by moving herds from place to place to find pasture and water
an isolated spot in a desert where water is found
a large, shallow lake in Uganda. It is the main source of the White Nile
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
Aswan High Dam
was built to develop the Nile's hydroelectric potential and to control the river's flow. Lake Nasser, a large reservoir on the border of Egypt and Sudan was formed as a result
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