The Aswan High Dam was built to regulate and control the annual flooding of the Nile River in order to protect crops and property from such uncontrolled flooding and to generate electricity. Most of its effects have been positive but several environmental effects are:
- Water-logging: because of the continuous high levels of water, the soil around the area is saturated with water, which prevents oxygenation of the soil that is essential to several plants and crops.
- Salinization of soils: caused by the inability of water-saturated soils to absorb salt, it is toxic to crops and damaging to infrastructures.
- Soil Erosion: it is a consequence of soil salinization as crops die and are unable to hold the soil in place.
There were also other negative effects such as:
- Archeology: two important archeological sites of Ancient Egypt were flooded and covered by the dam waters: the ancient cemetery of Fadrus and the Buhen fort.
- Loss of sediment: the annual flooding carried an enormous amount of sediment that is now trapped within the resulting Lake Nasser. Many of these sediments were used by local industries to manufacture bricks and they lost access to this renewable source of raw materials.
- More expensive and difficult purification of water: because the water does not move as much it is more transparent and allows the sunlight to penetrate deeper. This, combined with the trapped sediments has increased the growth of algae that have proliferated to the point that water purification is more and more expensive due to the necessary removal of this plant.
they declared their loyalty to france
Answer:
four laws passed by the Federalist-dominated 5th United States Congress and signed into law by President John Adams in 1798
Explanation:
don't know if there is choices or not, but if there is, then try to use the one closest to this
<span>The is: A.The bravery of the Tuskegee Airmen during World War II combat was instrumental in securing racial integration of the US military.
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Answer:
The Townshend Acts were a series of measures, passed by the British Parliament in 1767, that taxed goods imported to the American colonies. But American colonists, who had no representation in Parliament, saw the Acts as an abuse of power.Jan 15, 2020
Explanation:
"No taxation without representation" is a political slogan that originated in the American Revolution, and which expressed one of the primary grievances of the American colonists against Great Britain.
